https://lawnchairanthropology.com/2016/06/23/the-strange-days-of-yore/https://lawnchairanthropology.com/wp-content/uploads/2016/06/20140601_144030.jpg20140601_144030At Sterkfontein, a bronzed Broom considers the weight of his actions.https://lawnchairanthropology.com/wp-content/uploads/2016/06/drew-barrymore-as-gertie-79625.gifDrew-Barrymore-As-Gertie-79625Maybe it was a different Gertie, but surely the reaction was the same.https://lawnchairanthropology.com/wp-content/uploads/2016/06/screen-shot-2016-06-23-at-5-57-24-pm.pngScreen Shot 2016-06-23 at 5.57.24 PM2026-04-02T09:26:37+00:00monthlyhttps://lawnchairanthropology.com/2026/03/20/the-brain-of-human-animals/https://lawnchairanthropology.com/wp-content/uploads/2026/03/naledi-endocasts-1.pngnaledi endocastshttps://lawnchairanthropology.com/wp-content/uploads/2026/03/naledi-endocasts.pngnaledi endocastshttps://lawnchairanthropology.com/wp-content/uploads/2026/03/image-1.pngimagehttps://lawnchairanthropology.com/wp-content/uploads/2026/03/image.pngimage2026-03-20T16:15:16+00:00monthlyhttps://lawnchairanthropology.com/2009/03/17/a-new-african-late-miocene-ape/2026-03-15T09:21:20+00:00monthlyhttps://lawnchairanthropology.com/2026/03/12/bonobos-and-the-ultimate-hidden-truth-of-the-world/2026-03-13T07:42:20+00:00monthlyhttps://lawnchairanthropology.com/2019/08/30/new-old-australopithecus-anamensis-cranium/https://lawnchairanthropology.com/wp-content/uploads/2019/08/screen-shot-2019-08-30-at-8.32.37-am.pngScreen Shot 2019-08-30 at 8.32.37 AMPart of Figure 3 from the paper by Haile-Selassie and colleagues. On the top is a view from above of fossil humans: Sahelanthropus tchadensis, Ardipithecus ramidus, the new A. anamensis, A. afarensis, and A. africanus. Below the graphs show how species differ in narrowing of the frontal (left) and length of the skull (right).https://lawnchairanthropology.com/wp-content/uploads/2019/08/screen-shot-2019-08-30-at-8.24.14-am.pngScreen Shot 2019-08-30 at 8.24.14 AMTop views of the reconstructed A. anamensis cranium (left), and the Belohdelie frontal (center), and my crappy photoshopped overlay of Belohdelie on A. anamensis. Images not to scale :(https://lawnchairanthropology.com/wp-content/uploads/2019/08/anamensis-bee-sting.pnganamensis bee sting2026-03-10T08:24:23+00:00monthlyhttps://lawnchairanthropology.com/2014/10/29/can-ape-like-actually-be-human-like/https://lawnchairanthropology.com/wp-content/uploads/2014/10/m1-crancap.jpgM1 crancap2026-03-09T08:10:26+00:00monthlyhttps://lawnchairanthropology.com/2013/01/29/open-wide-for-open-access-chimpanzee-tooth-eruption/https://lawnchairanthropology.com/wp-content/uploads/2013/01/chimpfig1.jpgOpen wide for open access: chimpanzee tooth eruptionhttps://lawnchairanthropology.com/wp-content/uploads/2013/01/6d80e-chimpfig1.jpg6d80e-chimpfig1https://lawnchairanthropology.com/wp-content/uploads/2013/01/3bc92-chimpfig1.jpg3bc92-chimpfig1https://lawnchairanthropology.com/wp-content/uploads/2013/01/fd48c-chimpfig1.jpgfd48c-chimpfig12026-02-23T02:11:44+00:00monthlyhttps://lawnchairanthropology.com/2011/12/28/an-end-to-ediacaran-embryology/https://lawnchairanthropology.com/wp-content/uploads/2011/12/huldtgren.jpgAn end to Ediacaran embryology?https://lawnchairanthropology.com/wp-content/uploads/2011/12/f4d56-huldtgren.jpgf4d56-huldtgrenhttps://lawnchairanthropology.com/wp-content/uploads/2011/12/8c106-huldtgren.jpg8c106-huldtgrenhttps://lawnchairanthropology.com/wp-content/uploads/2011/12/11ca9-huldtgren.jpg11ca9-huldtgren2026-02-19T01:44:42+00:00monthlyhttps://lawnchairanthropology.com/2014/04/15/1124/https://lawnchairanthropology.com/wp-content/uploads/2014/04/sddefault.jpgsddefaulthttps://lawnchairanthropology.com/wp-content/uploads/2014/04/sts-71_r-lateral1.jpgSts 71_R lateral1https://lawnchairanthropology.com/wp-content/uploads/2014/04/wp-1397479298557.jpgwp-13974792985572026-02-15T10:32:46+00:00monthlyhttps://lawnchairanthropology.com/2011/07/18/new-beef-with-boisei-maybe-the-dingo-ate-their-babies/2026-02-11T13:24:29+00:00monthlyhttps://lawnchairanthropology.com/2026/01/16/fossilfriday-handy-habilis-formidable-forearms/https://lawnchairanthropology.com/wp-content/uploads/2026/01/image-2.pngimagehttps://lawnchairanthropology.com/wp-content/uploads/2026/01/image-1.pngimagehttps://lawnchairanthropology.com/wp-content/uploads/2026/01/image.pngimagehttps://lawnchairanthropology.com/wp-content/uploads/2026/01/et-fancy.jpegET-Fancy2026-01-27T16:11:28+00:00monthlyhttps://lawnchairanthropology.com/2025/03/26/how-small-apes-grow-big-canine-teeth/https://lawnchairanthropology.com/wp-content/uploads/2025/03/gibboncaninesdevelopment.pngGibbonCaninesDevelopmenthttps://lawnchairanthropology.com/wp-content/uploads/2025/03/image.pngimage2025-12-30T16:47:14+00:00monthlyhttps://lawnchairanthropology.com/2015/11/03/osteology-everywhere-why-we-number-our-premolars-3-4/https://lawnchairanthropology.com/wp-content/uploads/2015/11/untitled.pngUntitledRing tailed lemur (left) and woolly monkey (right) maxillae, showing the primitive primate dental formula including a P2. For scale, gridlines are 10 mm (left) and 20 mm (right).https://lawnchairanthropology.com/wp-content/uploads/2015/11/naledi-formula.pngNaledi FormulaUW 101-1277 mandible, part of the Homo naledi holotype skull. Modified from the Wits media gallery.2025-12-16T15:26:19+00:00monthlyhttps://lawnchairanthropology.com/2015/10/31/osteology-everywhere-halloween-skull-comet/https://lawnchairanthropology.com/wp-content/uploads/2015/10/untitled3.pngUntitledDead comet (left), and AL 333-105 (right). Modified from Fig. 12 of Kimbel et al. (1982).https://lawnchairanthropology.com/wp-content/uploads/2015/10/screen-shot-2015-10-31-at-2-29-55-pm.pngScreen Shot 2015-10-31 at 2.29.55 PM2025-12-15T12:22:36+00:00monthlyhttps://lawnchairanthropology.com/2011/04/26/is-eugenics-really-dead/2025-12-11T21:05:01+00:00monthlyhttps://lawnchairanthropology.com/2011/01/27/statistics-friend-or-foe/2025-12-11T21:01:33+00:00monthlyhttps://lawnchairanthropology.com/2011/01/19/speciation-and-reticulation/2025-12-11T21:01:14+00:00monthlyhttps://lawnchairanthropology.com/2009/10/30/halloween-special-heterotopy-pleiotropy-and-the-origins-of-vampires-free-dissertation-topicmovie-plot-line/2025-12-11T20:47:48+00:00monthlyhttps://lawnchairanthropology.com/2009/08/21/australopithecus-afarensis-a-mythical-creation-of-jim-henson/https://lawnchairanthropology.com/wp-content/uploads/2009/08/alemsegedetal-2006_fig1d-e.pngAustralopithecus afarensis: A mythical creation of Jim Henson?https://lawnchairanthropology.com/wp-content/uploads/2009/08/jen.jpgAustralopithecus afarensis: A mythical creation of Jim Henson?https://lawnchairanthropology.com/wp-content/uploads/2009/08/bd2d7-jen.jpgbd2d7-jenhttps://lawnchairanthropology.com/wp-content/uploads/2009/08/63054-alemsegedetal-2006_fig1d-e.png63054-alemsegedetal-2006_fig1d-ehttps://lawnchairanthropology.com/wp-content/uploads/2009/08/6fdfb-jen.jpg6fdfb-jenhttps://lawnchairanthropology.com/wp-content/uploads/2009/08/64d51-alemsegedetal-2006_fig1d-e.png64d51-alemsegedetal-2006_fig1d-e2025-12-11T20:45:41+00:00monthlyhttps://lawnchairanthropology.com/2008/05/09/new-twist-from-teeth/2025-12-11T20:30:19+00:00monthlyhttps://lawnchairanthropology.com/2025/11/30/hip-new-australopithecus-deyiremeda-juveniles/https://lawnchairanthropology.com/wp-content/uploads/2025/11/image-5.pngimagehttps://lawnchairanthropology.com/wp-content/uploads/2025/11/image-4.pngimagehttps://lawnchairanthropology.com/wp-content/uploads/2025/11/image-3.pngimagehttps://lawnchairanthropology.com/wp-content/uploads/2025/11/image-2.pngimagehttps://lawnchairanthropology.com/wp-content/uploads/2025/11/image-1.pngimagehttps://lawnchairanthropology.com/wp-content/uploads/2025/11/image.pngimage2025-12-01T12:02:34+00:00monthlyhttps://lawnchairanthropology.com/2012/03/29/an-un-hominid-foot-in-hominid-times/https://lawnchairanthropology.com/wp-content/uploads/2012/03/screenshot2012-03-28at9-49-20pm.pngAn un-hominid foot in hominid timeshttps://lawnchairanthropology.com/wp-content/uploads/2012/03/foot.jpgAn un-hominid foot in hominid timeshttps://lawnchairanthropology.com/wp-content/uploads/2012/03/zfoot.jpgAn un-hominid foot in hominid timeshttps://lawnchairanthropology.com/wp-content/uploads/2012/03/add72-zfoot.jpgadd72-zfoothttps://lawnchairanthropology.com/wp-content/uploads/2012/03/3fca3-screenshot2012-03-28at9-49-20pm.png3fca3-screenshot2012-03-28at9-49-20pmhttps://lawnchairanthropology.com/wp-content/uploads/2012/03/05758-foot.jpg05758-foothttps://lawnchairanthropology.com/wp-content/uploads/2012/03/41c9a-zfoot.jpg41c9a-zfoothttps://lawnchairanthropology.com/wp-content/uploads/2012/03/fcea3-screenshot2012-03-28at9-49-20pm.pngfcea3-screenshot2012-03-28at9-49-20pmhttps://lawnchairanthropology.com/wp-content/uploads/2012/03/58edd-screenshot2012-03-28at9-49-20pm.png58edd-screenshot2012-03-28at9-49-20pmhttps://lawnchairanthropology.com/wp-content/uploads/2012/03/8e0e9-foot.jpg8e0e9-foot2025-11-29T13:56:34+00:00monthlyhttps://lawnchairanthropology.com/2015/06/30/osteology-everywhere-ilium-nublar/https://lawnchairanthropology.com/wp-content/uploads/2015/06/untitled4.pngUntitledMLD at a slightly oblique view (or stretched top to bottom) magically transforms into Isla Nublar.https://lawnchairanthropology.com/wp-content/uploads/2015/06/screen-shot-2015-06-30-at-10-45-14-am.pngScreen Shot 2015-06-30 at 10.45.14 AMFigure 1 from Dart, 1958. Left side is MLD 7 and right is MLD 25. Top row is the lateral view (from the side) and bottom row is the medial view (from the inside).https://lawnchairanthropology.com/wp-content/uploads/2015/06/inublar.pnginublarhttps://lawnchairanthropology.com/wp-content/uploads/2015/06/hotyb.jpghotybHold on to your butts. What's that on the screen in front of Ray Arnold?2025-11-06T02:39:02+00:00monthlyhttps://lawnchairanthropology.com/2015/04/03/brain-size-growth-in-wild-and-captive-chimpanzees/https://lawnchairanthropology.com/wp-content/uploads/2015/04/untitled4.jpgUntitledGrowth rates at each age calculated from the B-spline regressions. Note these are arithmetic velocities and not first derivatives of the growth curves.https://lawnchairanthropology.com/wp-content/uploads/2015/04/untitled3.jpgUntitledB-splines describing the relationship between ECV (or brain mass) and age in the TaÏ (green) and Yerkes (blue) data. Although resampling identified different knots for each sample, the regression coefficients are not significantly different.https://lawnchairanthropology.com/wp-content/uploads/2015/04/untitled.jpgUntitledhttps://lawnchairanthropology.com/wp-content/uploads/2015/03/fig2-raw-data-copy.jpgfig2 raw data copy2025-10-09T20:04:27+00:00monthlyhttps://lawnchairanthropology.com/teaching/https://lawnchairanthropology.com/wp-content/uploads/2022/07/anthlabs.pngAnthLabshttps://lawnchairanthropology.com/wp-content/uploads/2022/01/attachment-vassar-2.jpegattachment-Vassar-2Blodgett Hall, home of Vassar's Anthropology Department, in promotional material from HBO's Sex Lives of College Girlshttps://lawnchairanthropology.com/wp-content/uploads/2014/12/img_20160801_143520.jpgIMG_20160801_143520https://lawnchairanthropology.com/wp-content/uploads/2014/12/20150922_194319.jpg20150922_194319https://lawnchairanthropology.com/wp-content/uploads/2014/12/img_20150922_212343.jpgIMG_20150922_212343https://lawnchairanthropology.com/wp-content/uploads/2014/12/dsc01400.jpgDSC01400https://lawnchairanthropology.com/wp-content/uploads/2014/12/2012-09-05-13-47-35.jpg2012-09-05 13.47.35https://lawnchairanthropology.com/wp-content/uploads/2014/12/2013-02-08-16-05-20.jpg2013-02-08 16.05.202025-08-26T14:46:43+00:00weekly0.6https://lawnchairanthropology.com/papers/https://lawnchairanthropology.com/wp-content/uploads/2022/08/image-1.pngimage-1https://lawnchairanthropology.com/wp-content/uploads/2022/08/image.pngimagehttps://lawnchairanthropology.com/wp-content/uploads/2019/08/screen-shot-2019-08-14-at-6.55.41-pm.pngScreen Shot 2019-08-14 at 6.55.41 PM2025-08-25T12:55:55+00:00weekly0.6https://lawnchairanthropology.com/2008/10/09/guest-post-jerry-and-julie-jive/2025-08-25T07:39:31+00:00monthlyhttps://lawnchairanthropology.com/2013/04/16/pre-publication-brain-growth-in-homo-erectus-plus-free-code/https://lawnchairanthropology.com/wp-content/uploads/2013/04/relativeontaxoncopy.jpgPre-publication: Brain growth in Homo erectus (plus free code!)https://lawnchairanthropology.com/wp-content/uploads/2013/04/hr3copy.jpgPre-publication: Brain growth in Homo erectus (plus free code!)https://lawnchairanthropology.com/wp-content/uploads/2013/04/earlybraingrowth.jpgPre-publication: Brain growth in Homo erectus (plus free code!)https://lawnchairanthropology.com/wp-content/uploads/2013/04/7c5c0-relativeontaxoncopy.jpg7c5c0-relativeontaxoncopyhttps://lawnchairanthropology.com/wp-content/uploads/2013/04/0d659-earlybraingrowth.jpg0d659-earlybraingrowthhttps://lawnchairanthropology.com/wp-content/uploads/2013/04/49157-hr3copy.jpg49157-hr3copyhttps://lawnchairanthropology.com/wp-content/uploads/2013/04/f6489-relativeontaxoncopy.jpgf6489-relativeontaxoncopyhttps://lawnchairanthropology.com/wp-content/uploads/2013/04/e7009-relativeontaxoncopy.jpge7009-relativeontaxoncopyhttps://lawnchairanthropology.com/wp-content/uploads/2013/04/5a18c-earlybraingrowth.jpg5a18c-earlybraingrowthhttps://lawnchairanthropology.com/wp-content/uploads/2013/04/b323b-hr3copy.jpgb323b-hr3copy2025-08-22T07:54:58+00:00monthlyhttps://lawnchairanthropology.com/2012/02/27/calotte-or-carapace/https://lawnchairanthropology.com/wp-content/uploads/2012/02/screenshot2012-02-27at10-58-26am.pngCalotte or Carapace?https://lawnchairanthropology.com/wp-content/uploads/2012/02/screenshot2012-02-27at11-09-18am.pngCalotte or Carapace?https://lawnchairanthropology.com/wp-content/uploads/2012/02/d468c-screenshot2012-02-27at11-09-18am.pngd468c-screenshot2012-02-27at11-09-18amhttps://lawnchairanthropology.com/wp-content/uploads/2012/02/74183-screenshot2012-02-27at10-58-26am.png74183-screenshot2012-02-27at10-58-26amhttps://lawnchairanthropology.com/wp-content/uploads/2012/02/24433-screenshot2012-02-27at11-09-18am.png24433-screenshot2012-02-27at11-09-18amhttps://lawnchairanthropology.com/wp-content/uploads/2012/02/18082-screenshot2012-02-27at10-58-26am.png18082-screenshot2012-02-27at10-58-26amhttps://lawnchairanthropology.com/wp-content/uploads/2012/02/6012d-screenshot2012-02-27at11-09-18am.png6012d-screenshot2012-02-27at11-09-18amhttps://lawnchairanthropology.com/wp-content/uploads/2012/02/7d43c-screenshot2012-02-27at10-58-26am.png7d43c-screenshot2012-02-27at10-58-26am2025-08-20T16:56:47+00:00monthlyhttps://lawnchairanthropology.com/2010/06/26/big-man-and-the-scapula-of-australopithecus-afarensis/https://lawnchairanthropology.com/wp-content/uploads/2010/06/ksdscapula.jpg"Big Man" and the scapula of Australopithecus afarensishttps://lawnchairanthropology.com/wp-content/uploads/2010/06/ksd-vp-1.jpg"Big Man" and the scapula of Australopithecus afarensishttps://lawnchairanthropology.com/wp-content/uploads/2010/06/dikikascapula.jpg"Big Man" and the scapula of Australopithecus afarensishttps://lawnchairanthropology.com/wp-content/uploads/2010/06/f58b0-ksd-vp-1.jpgf58b0-ksd-vp-1https://lawnchairanthropology.com/wp-content/uploads/2010/06/5e3c7-dikikascapula.jpg5e3c7-dikikascapulahttps://lawnchairanthropology.com/wp-content/uploads/2010/06/70aeb-ksdscapula.jpg70aeb-ksdscapulahttps://lawnchairanthropology.com/wp-content/uploads/2010/06/1a9f5-dikikascapula.jpg1a9f5-dikikascapulahttps://lawnchairanthropology.com/wp-content/uploads/2010/06/5554c-ksdscapula.jpg5554c-ksdscapulahttps://lawnchairanthropology.com/wp-content/uploads/2010/06/d175d-al288-scapula.jpgd175d-al288-scapulahttps://lawnchairanthropology.com/wp-content/uploads/2010/06/ec541-ksd-vp-1.jpgec541-ksd-vp-12025-08-15T14:46:18+00:00monthlyhttps://lawnchairanthropology.com/2023/12/22/krapina-endocast-update-open-data-code/https://lawnchairanthropology.com/wp-content/uploads/2023/12/image-2.pngimage-2https://lawnchairanthropology.com/wp-content/uploads/2023/12/image-1.pngimage-1https://lawnchairanthropology.com/wp-content/uploads/2023/12/image.pngimage2025-05-30T11:19:24+00:00monthlyhttps://lawnchairanthropology.com/head-lab/https://lawnchairanthropology.com/wp-content/uploads/2025/05/krapina-c-endo-video-360.gifKrapina C endo video 360https://lawnchairanthropology.com/wp-content/uploads/2025/05/ajba_gibbon_cover.jpgAJBA_Gibbon_Coverhttps://lawnchairanthropology.com/wp-content/uploads/2022/08/gibbon-ct-brain-teeth.pnggibbon-ct-brain-teeth2025-05-29T11:58:15+00:00weekly0.6https://lawnchairanthropology.com/datasets/https://lawnchairanthropology.com/wp-content/uploads/2023/07/gibbon-dental-stages-1-2.jpgGibbon Dental Stages (1)https://lawnchairanthropology.com/wp-content/uploads/2023/07/gibbon-dental-stages-1-1.jpggibbon-dental-stages-1-1https://lawnchairanthropology.com/wp-content/uploads/2023/07/gibbon-dental-stages-1.jpggibbon-dental-stages-1https://lawnchairanthropology.com/wp-content/uploads/2023/07/gibbon-dental-stages.jpgGibbon Dental Stageshttps://lawnchairanthropology.com/wp-content/uploads/2022/12/screen-shot-2022-12-23-at-6.09.44-pm.pngscreen-shot-2022-12-23-at-6.09.44-pmhttps://lawnchairanthropology.com/wp-content/uploads/2022/12/screen-shot-2022-12-23-at-6.08.40-pm.pngscreen-shot-2022-12-23-at-6.08.40-pm2025-05-27T08:11:51+00:00weekly0.6https://lawnchairanthropology.com/2013/10/23/osteology-everywhere-teaming-up-with-bone-broke-blog/https://lawnchairanthropology.com/wp-content/uploads/2013/10/wt-22944-ward-al-1997.jpgWT 22944-Ward &al 1997https://lawnchairanthropology.com/wp-content/uploads/2013/10/hamate.jpghamatehttps://lawnchairanthropology.com/wp-content/uploads/2013/10/osteourrywhere-cotswolds.jpgosteourrywhere Cotswolds2025-05-22T10:43:19+00:00monthlyhttps://lawnchairanthropology.com/2010/01/03/evolution-of-human-fingers-and-toes-the-two-go-foot-in-hand/2025-04-19T23:27:40+00:00monthlyhttps://lawnchairanthropology.com/2025/04/04/race-is-absolutely-a-human-invention/2025-04-05T00:39:23+00:00monthlyhttps://lawnchairanthropology.com/2012/01/21/historical-contingency-and-an-herbivorous-calamity/https://lawnchairanthropology.com/wp-content/uploads/2012/01/colobusmolar.jpgHistorical contingency and an herbivorous calamityhttps://lawnchairanthropology.com/wp-content/uploads/2012/01/er15930-walker2526leakey1988.jpgHistorical contingency and an herbivorous calamityhttps://lawnchairanthropology.com/wp-content/uploads/2012/01/048a0-er15930-walker2526leakey1988.jpg048a0-er15930-walker2526leakey1988https://lawnchairanthropology.com/wp-content/uploads/2012/01/ea846-colobusmolar.jpgea846-colobusmolarhttps://lawnchairanthropology.com/wp-content/uploads/2012/01/3718d-colobusmolar.jpg3718d-colobusmolarhttps://lawnchairanthropology.com/wp-content/uploads/2012/01/90ab0-er15930-walker2526leakey1988.jpg90ab0-er15930-walker2526leakey1988https://lawnchairanthropology.com/wp-content/uploads/2012/01/7a4ed-colobusmolar.jpg7a4ed-colobusmolarhttps://lawnchairanthropology.com/wp-content/uploads/2012/01/cb35f-er15930-walker2526leakey1988.jpgcb35f-er15930-walker2526leakey19882025-03-19T15:53:03+00:00monthlyhttps://lawnchairanthropology.com/2015/11/15/bioanthro-lab-activity-hominin-brain-size/https://lawnchairanthropology.com/wp-content/uploads/2015/11/screen-shot-2015-11-15-at-11-17-36-am.pngScreen Shot 2015-11-15 at 11.17.36 AM"Why doesn't this look like the rest of the human crania we've seen this semester?"https://lawnchairanthropology.com/wp-content/uploads/2015/11/untitled3.pngUntitledThe relationship between cranial length (x axis) and ECV (y axis).https://lawnchairanthropology.com/wp-content/uploads/2015/11/lab-4-estimated-vs-actual-copy.jpgLab 4-estimated vs actual copyHuman and chimpanzee regression equations don't do great at estimating hominin brain sizes.https://lawnchairanthropology.com/wp-content/uploads/2015/11/screen-shot-2015-11-15-at-10-31-47-am.pngScreen Shot 2015-11-15 at 10.31.47 AM2025-03-03T13:56:05+00:00monthlyhttps://lawnchairanthropology.com/2025/01/31/new-course-is-the-human-brain-special/2025-01-31T19:15:51+00:00monthlyhttps://lawnchairanthropology.com/2011/02/17/evolution-what-it-is-and-why-humans-arent-immune-to-it/2025-01-22T14:22:26+00:00monthlyhttps://lawnchairanthropology.com/2011/11/08/we-should-not-try-to-clone-neandertals/2024-12-31T13:57:10+00:00monthlyhttps://lawnchairanthropology.com/2015/12/23/fragmentary-fossils-help-reveal-neandertal-skull-growth/https://lawnchairanthropology.com/wp-content/uploads/2015/12/untitled.pngUntitledGrowth difference.2024-12-29T15:09:11+00:00monthlyhttps://lawnchairanthropology.com/2012/11/27/a-new-method-for-analyzing-growth-in-extinct-animals-dissertation-summary-1/https://lawnchairanthropology.com/wp-content/uploads/2012/11/43d3a-figure3.jpg43d3a-figure3https://lawnchairanthropology.com/wp-content/uploads/2012/11/11623-figure5.jpg11623-figure5https://lawnchairanthropology.com/wp-content/uploads/2012/11/figure1-resampling.jpgA new method for analyzing growth in extinct animals (dissertation summary 1)https://lawnchairanthropology.com/wp-content/uploads/2012/11/zetaoverallcomparison.jpgA new method for analyzing growth in extinct animals (dissertation summary 1)https://lawnchairanthropology.com/wp-content/uploads/2012/11/62e65-zetaoverallcomparison.jpg62e65-zetaoverallcomparisonhttps://lawnchairanthropology.com/wp-content/uploads/2012/11/3073b-figure3.jpg3073b-figure3https://lawnchairanthropology.com/wp-content/uploads/2012/11/4978e-figure5.jpg4978e-figure5https://lawnchairanthropology.com/wp-content/uploads/2012/11/3bb2f-figure1-resampling.jpg3bb2f-figure1-resamplinghttps://lawnchairanthropology.com/wp-content/uploads/2012/11/76b6c-zetaoverallcomparison.jpg76b6c-zetaoverallcomparisonhttps://lawnchairanthropology.com/wp-content/uploads/2012/11/ceda1-figure5.jpgceda1-figure52024-12-29T15:00:16+00:00monthlyhttps://lawnchairanthropology.com/2011/09/13/tess-tossed-tyrone/2024-12-29T14:53:45+00:00monthlyhttps://lawnchairanthropology.com/2011/08/24/back-to-the-backbone-of-homo-erectus/https://lawnchairanthropology.com/wp-content/uploads/2011/08/wt2b15k2b-2bt122bfrags_hausler2b2526al2b2011.jpegBack to the backbone of Homo erectushttps://lawnchairanthropology.com/wp-content/uploads/2011/08/10f06-wt2b15k2b-2bt122bfrags_hausler2b2526al2b2011.jpeg10f06-wt2b15k2b-2bt122bfrags_hausler2b2526al2b2011https://lawnchairanthropology.com/wp-content/uploads/2011/08/c5997-wt2b15k2b-2bt122bfrags_hausler2b2526al2b2011.jpegc5997-wt2b15k2b-2bt122bfrags_hausler2b2526al2b2011https://lawnchairanthropology.com/wp-content/uploads/2011/08/34acb-wt15000spine_hausleral2011.jpg34acb-wt15000spine_hausleral20112024-12-29T14:49:08+00:00monthlyhttps://lawnchairanthropology.com/2014/07/26/a-picture-is-worth-a-thousand-datapoints-in-rstats/https://lawnchairanthropology.com/wp-content/uploads/2014/07/screen-shot-2014-07-26-at-6-57-01-pm.pngScreen Shot 2014-07-26 at 6.57.01 PMhttps://lawnchairanthropology.com/wp-content/uploads/2014/07/screen-shot-2014-07-26-at-5-46-37-pm.pngScreen Shot 2014-07-26 at 5.46.37 PMPlot yourself down and have a beer.https://lawnchairanthropology.com/wp-content/uploads/2014/07/screen-shot-2014-07-26-at-5-27-49-pm.pngScreen Shot 2014-07-26 at 5.27.49 PMR codes to create the vectors of points to be plotted in the second graph. Note that vectors are not created for gorillas because the sample size is too small, or for H. erectus because the distribution is basically the same across all ages.https://lawnchairanthropology.com/wp-content/uploads/2014/07/psc-3-versions-copy.jpgPSC 3 versions copyAll 2024-12-29T14:37:45+00:00monthlyhttps://lawnchairanthropology.com/2015/10/25/gracile-robust-australopithecus/https://lawnchairanthropology.com/wp-content/uploads/2015/10/12042876_10100137563553352_6075967075185602789_n.jpg12042876_10100137563553352_6075967075185602789_nDon't do it, Homo naledi. Don't talk about body size when you mean to talk about jaw and tooth size. Illustration by Flos Vingerhoets.https://lawnchairanthropology.com/wp-content/uploads/2015/10/untitled.pngUntitledAt least one person is not citing their source here. F-.https://lawnchairanthropology.com/wp-content/uploads/2015/10/ragazzirobusti.pngragazzirobustiGood god, Lemon (http://www.imdb.com/title/tt1635806/).https://lawnchairanthropology.com/wp-content/uploads/2015/10/screen-shot-2015-10-22-at-1-41-26-pm.pngScreen Shot 2015-10-22 at 1.41.26 PM2024-12-08T13:51:48+00:00monthlyhttps://lawnchairanthropology.com/2024/12/05/the-hand-of-homo-naledi-points-to-life-before-birth/https://lawnchairanthropology.com/wp-content/uploads/2024/12/image-1.pngimagehttps://lawnchairanthropology.com/wp-content/uploads/2024/12/image.pngimage2024-12-07T14:30:19+00:00monthlyhttps://lawnchairanthropology.com/2023/11/10/what-do-brain-endocasts-tell-us/https://lawnchairanthropology.com/wp-content/uploads/2023/11/image-2.pngimage-2https://lawnchairanthropology.com/wp-content/uploads/2023/11/image-1.pngimage-1https://lawnchairanthropology.com/wp-content/uploads/2023/11/image.pngimagehttps://lawnchairanthropology.com/wp-content/uploads/2023/11/homo-naledi-endocasts-2.jpghomo-naledi-endocasts-22024-12-07T14:29:26+00:00monthlyhttps://lawnchairanthropology.com/2021/03/03/brain-size-scaling-virtual-lab-activity/2024-12-07T14:27:54+00:00monthlyhttps://lawnchairanthropology.com/2019/06/26/this-is-how-we-do-it/https://lawnchairanthropology.com/wp-content/uploads/2019/06/lesedi-sphere-vs-fhd_no-krapina-copy-e1561573341304.jpgLesedi sphere vs FHD_No Krapina copyDirect femur head measurements (y-axis) vs. sphere-based estimates using the method described here (x-axis). The Homo naledi estimate is indicated by the blue line.https://lawnchairanthropology.com/wp-content/uploads/2019/06/picture1-2.pngPicture1https://lawnchairanthropology.com/wp-content/uploads/2019/06/picture1-1.pngPicture1https://lawnchairanthropology.com/wp-content/uploads/2019/06/screen-shot-2019-06-26-at-12.19.36-pm.pngScreen Shot 2019-06-26 at 12.19.36 PMhttps://lawnchairanthropology.com/wp-content/uploads/2019/06/picture1.pngPicture1https://lawnchairanthropology.com/wp-content/uploads/2019/06/screen-shot-2019-06-26-at-11.25.59-am.pngScreen Shot 2019-06-26 at 11.25.59 AMhttps://lawnchairanthropology.com/wp-content/uploads/2019/06/screen-shot-2019-06-26-at-10.55.28-am.pngScreen Shot 2019-06-26 at 10.55.28 AMhttps://lawnchairanthropology.com/wp-content/uploads/2019/06/step-1.pngstep 1https://lawnchairanthropology.com/wp-content/uploads/2019/06/screenshot_116.pngscreenshot_1162024-12-07T14:25:43+00:00monthlyhttps://lawnchairanthropology.com/2023/08/08/did-homo-naledi-have-big-babies/https://lawnchairanthropology.com/wp-content/uploads/2023/08/screen-shot-2023-05-25-at-10.58.45-pm.pngscreen-shot-2023-05-25-at-10.58.45-pmhttps://lawnchairanthropology.com/wp-content/uploads/2023/08/naledi-newborn-size-copy.jpgnaledi-newborn-size-copyhttps://lawnchairanthropology.com/wp-content/uploads/2023/08/naledi-newborn-adult-size-copy.jpgnaledi-newborn-adult-size-copyhttps://lawnchairanthropology.com/wp-content/uploads/2023/08/screen-shot-2023-08-04-at-11.06.55-am.pngscreen-shot-2023-08-04-at-11.06.55-am2024-12-07T14:24:15+00:00monthlyhttps://lawnchairanthropology.com/about/https://lawnchairanthropology.com/wp-content/uploads/2024/12/zc_pilanesberg.pngZC_Pilanesberghttps://lawnchairanthropology.com/wp-content/uploads/2022/08/dsc00671.jpgdsc00671https://lawnchairanthropology.com/wp-content/uploads/2013/08/img_20160510_085228.jpgIMG_20160510_085228https://lawnchairanthropology.com/wp-content/uploads/2013/08/camel-skull.jpegcamel skullhttps://lawnchairanthropology.com/wp-content/uploads/2013/08/zach_microscope_3.jpgZach_microscope_3https://lawnchairanthropology.com/wp-content/uploads/2013/08/2014-04-08-02-50-16.jpg2014-04-08 02.50.16https://lawnchairanthropology.com/wp-content/uploads/2013/08/2014-01-25-22-22-02.jpg2014-01-25 22.22.02https://lawnchairanthropology.com/wp-content/uploads/2013/08/profile-dmanisi.jpgprofile-dmanisihttps://lawnchairanthropology.com/wp-content/uploads/2013/08/20130702_112312.jpg20130702_1123122024-12-02T01:13:06+00:00weekly0.6https://lawnchairanthropology.com/2017/12/11/the-most-complete-australopithecus-skeleton/https://lawnchairanthropology.com/wp-content/uploads/2017/12/screen-shot-2017-12-11-at-9-21-13-am.pngScreen Shot 2017-12-11 at 9.21.13 AMHominin first ribs/bacon, with StW 573 on the far right. Modified from this post.https://lawnchairanthropology.com/wp-content/uploads/2017/12/800-5.jpeg800 (5)"EXPELLIARMUS"https://lawnchairanthropology.com/wp-content/uploads/2017/12/screen-shot-2017-12-08-at-3-28-27-pm.pngScreen Shot 2017-12-08 at 3.28.27 PMStW 573 pelvis (left) compared with Sts 14 (A. africanus, middle) and SH pelvis 1 (archaic Homo, right). Sts 14 modified from Berge & Goularis (2010) and SH pelvis 1 from Bonmati et al. (2010).https://lawnchairanthropology.com/wp-content/uploads/2017/12/stw-573-thorax.pngStw 573 thoraxClose up of the skull and upper trunk of StW 573, highlighting the cervical vertebral canal (white arrow) and first rib (orange arrow). Original photo credit: AP/https://lawnchairanthropology.com/wp-content/uploads/2017/12/limb-comparison-stw-573.pngLimb comparison Stw 573Limb proportion comparison. Humerus (top row), radius & ulna (middle row), and femur (bottom row). Image modified from Asfaw et al. (1999). StW 573 scaled to same humerus length as the human.https://lawnchairanthropology.com/wp-content/uploads/2017/12/australopithecus-skeletons.pngAustralopithecus skeletonshttps://lawnchairanthropology.com/wp-content/uploads/2017/12/800-3.jpeg800 (3)Ron Clarke showcases the lovingly-excavated skeleton2024-07-24T19:13:32+00:00monthlyhttps://lawnchairanthropology.com/2011/06/17/100000-year-old-child-skeleton-on-national-geographic/https://lawnchairanthropology.com/wp-content/uploads/2011/06/thompson2btps.jpg100,000 year old child skeleton on National Geographichttps://lawnchairanthropology.com/wp-content/uploads/2011/06/fdb0e-thompson2btps.jpgfdb0e-thompson2btpshttps://lawnchairanthropology.com/wp-content/uploads/2011/06/50ffc-thompson2btps.jpg50ffc-thompson2btpshttps://lawnchairanthropology.com/wp-content/uploads/2011/06/82b7b-thompson2btps.jpg82b7b-thompson2btps2024-06-30T14:38:22+00:00monthlyhttps://lawnchairanthropology.com/2012/03/13/osteology-everywhere-pelvis-has-left-the-building/https://lawnchairanthropology.com/wp-content/uploads/2012/03/pelvis-splotch.jpgOsteology everywhere: Pelvis has left the buildinghttps://lawnchairanthropology.com/wp-content/uploads/2012/03/1abfc-pelvis-splotch.jpg1abfc-pelvis-splotchhttps://lawnchairanthropology.com/wp-content/uploads/2012/03/668a3-pelvis-splotch.jpg668a3-pelvis-splotchhttps://lawnchairanthropology.com/wp-content/uploads/2012/03/e5a0d-pelvis-splotch.jpge5a0d-pelvis-splotch2024-06-25T06:32:22+00:00monthlyhttps://lawnchairanthropology.com/2013/08/02/molar-i-hardly-even-know-her-2/https://lawnchairanthropology.com/wp-content/uploads/2013/08/2013-07-2415-24-48.jpgMolar? I hardly even know her!https://lawnchairanthropology.com/wp-content/uploads/2013/08/screenshot2013-08-02at10-58-16pm.pngMolar? I hardly even know her!https://lawnchairanthropology.com/wp-content/uploads/2013/08/2013-07-2315-20-11.jpgMolar? I hardly even know her!https://lawnchairanthropology.com/wp-content/uploads/2013/08/6ea2f-screenshot2013-08-02at10-58-16pm.png6ea2f-screenshot2013-08-02at10-58-16pmhttps://lawnchairanthropology.com/wp-content/uploads/2013/08/ebd00-2013-07-2315-20-11.jpgebd00-2013-07-2315-20-11https://lawnchairanthropology.com/wp-content/uploads/2013/08/704f9-2013-07-2415-24-48.jpg704f9-2013-07-2415-24-48https://lawnchairanthropology.com/wp-content/uploads/2013/08/17532-screenshot2013-08-02at10-58-16pm.png17532-screenshot2013-08-02at10-58-16pmhttps://lawnchairanthropology.com/wp-content/uploads/2013/08/85997-2013-07-2415-24-48.jpg85997-2013-07-2415-24-48https://lawnchairanthropology.com/wp-content/uploads/2013/08/c4cc5-screenshot2013-08-02at10-58-16pm.pngc4cc5-screenshot2013-08-02at10-58-16pmhttps://lawnchairanthropology.com/wp-content/uploads/2013/08/7d6ec-2013-07-2315-20-11.jpg7d6ec-2013-07-2315-20-112024-06-25T06:27:20+00:00monthlyhttps://lawnchairanthropology.com/2014/03/01/toe-tally-easy-virtual-lab-activity-ardipithecus-kadabba/https://lawnchairanthropology.com/wp-content/uploads/2014/03/kupriinstructions.jpgkupriinstructionsEasy image acquisition on the KUPRI database (this is a gorilla, with a pretty messed up fourth digit). Have your students save the sectioned image as above, which can then be analyzed as illustrated in the previous figure.https://lawnchairanthropology.com/wp-content/uploads/2014/03/screen-shot-2014-03-01-at-2-53-10-pm.pngScreen Shot 2014-03-01 at 2.53.10 PMMeasuring the dorsal canting of the AME-VP-1/71 proximal joint surface, using ImageJ.https://lawnchairanthropology.com/wp-content/uploads/2014/03/joint.jpgjointSchematic of a hyper-dorseflexed proximal toe joint (indicated by red star).https://lawnchairanthropology.com/wp-content/uploads/2014/03/comparison.jpgcomparisonComparison of 4th proximal pedal phalanges, scaled to same length. Left to right, and top to bottom: Chimp, Ar. kadabba and Au. afarensis. Modified from plates 7.24-7.25 in the kadabba monograph)https://lawnchairanthropology.com/wp-content/uploads/2014/03/ame-1-71.jpgAME 1-71AME-VP 1/71, the sciencey name of the toe bone in question. The proximal end, toward the foot, is to the left and the distal end, toe-tipward, is to the right. Modified from plates 7.8 and 7.21 in the monograph.https://lawnchairanthropology.com/wp-content/uploads/2014/03/ar-kadabba-fig11.jpgAr kadabba-Fig1Can you spot a biped? Ardipithecus kadabba fossils (Fig. 1 from Haile-Selassie, 2001).2024-06-24T05:56:22+00:00monthlyhttps://lawnchairanthropology.com/2014/06/27/effing-fossil-friday-feces/https://lawnchairanthropology.com/wp-content/uploads/2014/06/neandertal-coprolite.jpgNeandertal coprolite2024-06-07T10:51:18+00:00monthlyhttps://lawnchairanthropology.com/2011/05/07/what-the-hell-was-australopithecus-boisei-doing/https://lawnchairanthropology.com/wp-content/uploads/2011/05/robust2bface_mccollum2bfig1.jpgWhat the hell was Australopithecus boisei doing?https://lawnchairanthropology.com/wp-content/uploads/2011/05/8295c-robust2bface_mccollum2bfig1.jpg8295c-robust2bface_mccollum2bfig1https://lawnchairanthropology.com/wp-content/uploads/2011/05/3e3cf-robust2bface_mccollum2bfig1.jpg3e3cf-robust2bface_mccollum2bfig12024-06-07T08:50:58+00:00monthlyhttps://lawnchairanthropology.com/2011/10/26/dmanisi-homo-erectus-ill-have-what-shes-having/https://lawnchairanthropology.com/wp-content/uploads/2011/10/jaws_pontzer2526al2011.jpgDmanisi Homo erectus: I'll have what she's havinghttps://lawnchairanthropology.com/wp-content/uploads/2011/10/42b75-jaws_pontzer2526al2011.jpg42b75-jaws_pontzer2526al2011https://lawnchairanthropology.com/wp-content/uploads/2011/10/504e4-jaws_pontzer2526al2011.jpg504e4-jaws_pontzer2526al2011https://lawnchairanthropology.com/wp-content/uploads/2011/10/3b53e-jaws_pontzer2526al2011.jpg3b53e-jaws_pontzer2526al20112024-05-30T17:15:35+00:00monthlyhttps://lawnchairanthropology.com/2012/08/22/bonobo-survival-strategy/https://lawnchairanthropology.com/wp-content/uploads/2012/08/screenshot2012-08-22at10-37-59pm.pngBonobo survival strategyhttps://lawnchairanthropology.com/wp-content/uploads/2012/08/c8460-screenshot2012-08-22at10-37-59pm.pngc8460-screenshot2012-08-22at10-37-59pmhttps://lawnchairanthropology.com/wp-content/uploads/2012/08/f4a9a-screenshot2012-08-22at10-37-59pm.pngf4a9a-screenshot2012-08-22at10-37-59pmhttps://lawnchairanthropology.com/wp-content/uploads/2012/08/00f07-screenshot2012-08-22at10-37-59pm.png00f07-screenshot2012-08-22at10-37-59pm2024-04-15T15:18:37+00:00monthlyhttps://lawnchairanthropology.com/2015/08/23/easter-eggs-from-raymond-dart/https://lawnchairanthropology.com/wp-content/uploads/2015/08/medmediabank-fmmus171.jpegmedmediabank-FMMUS171Dart, hammering away to remove a fossil from some breccia. I hope. Image credit.https://lawnchairanthropology.com/wp-content/uploads/2015/08/20140507_114123.jpg20140507_114123Taung was such an important discovery, you can now walk across it as you enter the fossil collections at Wits University.2024-03-31T18:55:05+00:00monthlyhttps://lawnchairanthropology.com/2017/05/22/osteology-everywhere-aerial-ossicles/https://lawnchairanthropology.com/wp-content/uploads/2017/05/anthropology.gifanthropologyhttps://lawnchairanthropology.com/wp-content/uploads/2017/05/ossicles.pngOssiclesIncus bones in three different views of SK 848, human chimpanzee, gorilla, sock puppet (left to right). Modified from Rak and Clarke, 1979.https://lawnchairanthropology.com/wp-content/uploads/2017/05/anatomy-of-the-inner-ear-chart2b1.jpganatomy-of-the-inner-ear-chart2b1Cross section of a right ear, viewed from the front. Image credit.https://lawnchairanthropology.com/wp-content/uploads/2017/05/nightmare.pngnightmareLeft: An osteologist's nightmare at 20,000 feet. Right: Ear ossicles from White et al. (2012).https://lawnchairanthropology.com/wp-content/uploads/2017/05/img_20170419_084210_479.jpgIMG_20170419_084210_479What's that outside the city center?https://lawnchairanthropology.com/wp-content/uploads/2017/05/twilight.giftwilight2024-01-28T22:31:15+00:00monthlyhttps://lawnchairanthropology.com/2011/10/13/genetic-basis-of-disgusting/https://lawnchairanthropology.com/wp-content/uploads/2011/10/nmrspines.jpgGenetic basis of disgustinghttps://lawnchairanthropology.com/wp-content/uploads/2011/10/7381f-nmrspines.jpg7381f-nmrspineshttps://lawnchairanthropology.com/wp-content/uploads/2011/10/698c6-nmrspines.jpg698c6-nmrspineshttps://lawnchairanthropology.com/wp-content/uploads/2011/10/8b480-nmrspines.jpg8b480-nmrspines2024-01-22T02:56:12+00:00monthlyhttps://lawnchairanthropology.com/2011/12/13/humans-and-snakes-beyond-the-garden/https://lawnchairanthropology.com/wp-content/uploads/2011/12/snakeradiograph.jpgHumans and snakes, beyond the Gardenhttps://lawnchairanthropology.com/wp-content/uploads/2011/12/3932f-snakeradiograph.jpg3932f-snakeradiographhttps://lawnchairanthropology.com/wp-content/uploads/2011/12/f3656-snakeradiograph.jpgf3656-snakeradiographhttps://lawnchairanthropology.com/wp-content/uploads/2011/12/3d1cf-snakeradiograph.jpg3d1cf-snakeradiograph2024-01-20T12:10:32+00:00monthlyhttps://lawnchairanthropology.com/2015/05/03/yi-qi-another-fossil-from-the-dark-crystal/https://lawnchairanthropology.com/wp-content/uploads/2015/05/yiqiskeksis.pngYiQiSkeksishttps://lawnchairanthropology.com/wp-content/uploads/2015/05/yiqiwings.pngyiqiwingsExtended Data Figure 8 from Xu et al. Comparison of the wing structure of different flying/gliding animals.https://lawnchairanthropology.com/wp-content/uploads/2015/05/yiqi3.pngyiqi3The rest of Figure 1 from Xu et al. Important for flight are the structures labeled "ldm4/rdm4" and "lse/rse."https://lawnchairanthropology.com/wp-content/uploads/2015/05/untitled.pngUntitledThe Yi qi partial skeleton (Figure 1 from Xu et al.). Inset c is a closeup of the skull, and e a closeup of the elongated finger bones on the right side. Lookit that majestic mane of feathers flowing from the back of its head and down its neck.https://lawnchairanthropology.com/wp-content/uploads/2015/05/yiqi2.pngYiqi2The dinosaur version of Edward Scissorhands.https://lawnchairanthropology.com/wp-content/uploads/2015/05/yiqi1.pngYiqi1The Yi qi partial skeleton (Figure 1 from Xu et al.). Inset c is a closeup of the skull, and e a closeup of the "fingers" on the right side.2024-01-11T15:48:14+00:00monthlyhttps://lawnchairanthropology.com/2021/02/09/latest-from-the-lab-brain-size-at-krapina/2021-11-23T13:18:55+00:00monthlyhttps://lawnchairanthropology.com/2020/01/26/new-decade-new-syllabi/2020-01-26T20:11:11+00:00monthlyhttps://lawnchairanthropology.com/2017/09/03/new-anthropology-syllabi-for-2017/https://lawnchairanthropology.com/wp-content/uploads/2017/09/climatesummit.jpgclimatesummithttps://lawnchairanthropology.com/wp-content/uploads/2017/09/anth-235-site-map.pngAnth 235 site map2017-09-03T12:27:25+00:00monthlyhttps://lawnchairanthropology.com/2017/04/23/aapa2017/https://lawnchairanthropology.com/wp-content/uploads/2017/04/screen-shot-2017-04-23-at-8-36-05-am.pngScreen Shot 2017-04-23 at 8.36.05 AM2017-04-23T12:47:57+00:00monthlyhttps://lawnchairanthropology.com/2017/02/27/scientific-racism/https://lawnchairanthropology.com/wp-content/uploads/2017/02/screen-shot-2017-02-25-at-9-07-54-am.pngscreen-shot-2017-02-25-at-9-07-54-amhttps://lawnchairanthropology.com/wp-content/uploads/2017/02/screen-shot-2017-02-25-at-8-28-56-am.pngscreen-shot-2017-02-25-at-8-28-56-amhttps://lawnchairanthropology.com/wp-content/uploads/2017/02/scientific-racism.pngscientific-racism2017-02-27T19:41:21+00:00monthlyhttps://lawnchairanthropology.com/2015/01/30/effing-fossilfriday-pleistocene-ppl-blowin-up-this-week/https://lawnchairanthropology.com/wp-content/uploads/2015/01/screen-shot-2015-05-27-at-11-03-33-pm.pngScreen Shot 2015-05-27 at 11.03.33 PMThe Manot calvaria (Figure 2 from Hershkovitz et al.) The views are (a-d) from the top with front to the left; from the left; from the front; and from the back. Extra credit: In the top view (a), can you identify the features telling that the front is to the left?2017-02-22T16:11:09+00:00monthlyhttps://lawnchairanthropology.com/2016/12/31/worst-year-in-review/https://lawnchairanthropology.com/wp-content/uploads/2016/12/20161107_135616.jpg20161107_135616https://lawnchairanthropology.com/wp-content/uploads/2016/12/20161111_141908.jpg20161111_141908https://lawnchairanthropology.com/wp-content/uploads/2016/12/giphy.gifgiphy2016-12-31T11:45:26+00:00monthlyhttps://lawnchairanthropology.com/2016/12/23/osteology-everywhere-skull-in-the-stone-fossilfriday-edition/https://lawnchairanthropology.com/wp-content/uploads/2016/12/233313fc41ee3a63_tumblr_mgdqksndiz1ro7sbfo1_400-xxxlarge.gif233313fc41ee3a63_tumblr_mgdqksndiz1ro7sbfo1_400-xxxlargehttps://lawnchairanthropology.com/wp-content/uploads/2016/12/seinfeld-its-a-festivus-miracle.gifseinfeld-its-a-festivus-miraclehttps://lawnchairanthropology.com/wp-content/uploads/2016/12/bangkok-erectus.pngbangkok-erectushttps://lawnchairanthropology.com/wp-content/uploads/2016/12/20161220_202353.jpg20161220_202353https://lawnchairanthropology.com/wp-content/uploads/2016/12/screen-shot-2016-12-23-at-3-26-15-pm.pngscreen-shot-2016-12-23-at-3-26-15-pm2017-04-12T20:36:45+00:00monthlyhttps://lawnchairanthropology.com/2016/11/27/osteology-everywhere-skeletal-spice/https://lawnchairanthropology.com/wp-content/uploads/2016/11/screen-shot-2016-11-26-at-5-48-42-pm.pngscreen-shot-2016-11-26-at-5-48-42-pmhttps://lawnchairanthropology.com/wp-content/uploads/2016/11/screen-shot-2016-11-26-at-5-36-05-pm.pngscreen-shot-2016-11-26-at-5-36-05-pmhttps://lawnchairanthropology.com/wp-content/uploads/2016/11/download.jpegdownload2016-11-27T19:49:40+00:00monthlyhttps://lawnchairanthropology.com/2016/10/20/what-do-capuchin-stone-tools-tell-us-about-human-evolution/https://lawnchairanthropology.com/wp-content/uploads/2016/10/picture1.pngpicture1https://lawnchairanthropology.com/wp-content/uploads/2016/10/screen-shot-2016-10-20-at-7-56-44-am.pngscreen-shot-2016-10-20-at-7-56-44-amhttps://lawnchairanthropology.com/wp-content/uploads/2016/10/screen-shot-2016-10-20-at-7-57-24-am.pngscreen-shot-2016-10-20-at-7-57-24-am2016-10-20T15:22:45+00:00monthlyhttps://lawnchairanthropology.com/2016/10/17/a-change-of-scenery/https://lawnchairanthropology.com/wp-content/uploads/2016/10/dsc06863.jpgdsc06863https://lawnchairanthropology.com/wp-content/uploads/2016/10/spiders-2.jpgspiders-2https://lawnchairanthropology.com/wp-content/uploads/2016/10/east-kz-caving.jpgeast-kz-cavinghttps://lawnchairanthropology.com/wp-content/uploads/2016/09/dsc06903.jpgDSC06903https://lawnchairanthropology.com/wp-content/uploads/2016/09/screen-shot-2016-09-04-at-1-42-03-pm.pngScreen Shot 2016-09-04 at 1.42.03 PMhttps://lawnchairanthropology.com/wp-content/uploads/2016/09/screen-shot-2016-09-04-at-1-38-08-pm.pngScreen Shot 2016-09-04 at 1.38.08 PMhttps://lawnchairanthropology.com/wp-content/uploads/2016/09/dsc06851.jpgDSC068512016-10-17T17:25:11+00:00monthlyhttps://lawnchairanthropology.com/2016/07/28/dietary-divergence-of-robust-australopithecines/https://lawnchairanthropology.com/wp-content/uploads/2016/07/robust-isotopes.pngrobust isotopesStable carbon isotope data for robust australopithecines. Data from Cerling et al. (2013) and skull diagrams from Kimbel et al. (2004). Note again the complete distinction between A. robustus (red) and A. boisei (blue).https://lawnchairanthropology.com/wp-content/uploads/2016/07/robust-microwear.pngrobust microwearMicrowear in A. boisei (blue) and A. robustus (red). Although they overlap mostly for anisotropy (y-axis), they are completely distinct for complexity (x-axis). Data from Grine et al. (2012) and skull diagrams from Kimbel et al. (2004).https://lawnchairanthropology.com/wp-content/uploads/2016/07/screen-shot-2016-07-28-at-9-28-43-am.pngScreen Shot 2016-07-28 at 9.28.43 AMComparison of a "gracile" (left) and "robust" (right) Australopithecus face, from Robinson (1954).2016-07-29T17:31:46+00:00monthlyhttps://lawnchairanthropology.com/2016/07/26/did-neandertal-brains-grow-like-humans-or-not/https://lawnchairanthropology.com/wp-content/uploads/2016/07/screen-shot-2016-07-26-at-5-01-17-pm.pngScreen Shot 2016-07-26 at 5.01.17 PMhttps://lawnchairanthropology.com/wp-content/uploads/2016/07/screen-shot-2016-07-26-at-4-47-13-pm.pngScreen Shot 2016-07-26 at 4.47.13 PMEndocranial shape change in humans (green) and Neandertals (red), from Ponce de Leon et al. (2016). Note that the human polygons and letters represent age groups, whereas the Neandertal polygons and labels are reconstructions of individual specimens.https://lawnchairanthropology.com/wp-content/uploads/2016/07/screen-shot-2016-07-26-at-4-38-39-pm.pngScreen Shot 2016-07-26 at 4.38.39 PMEndocranial (e.g., brain) shape change in humans (blue), Neandertals (red) and chimpanzees (green), Fig. 7 from Gunz et al. (2012). Age groups are indicated by numbers. The human "globularization phase" is represented by the great difference in the y-axis values of groups 1-2. The Neandertals match the chimpanzee pattern of shape change; Neandertal neonates (LeM2 and M) do not plot as predicted by a human pattern of growth.https://lawnchairanthropology.com/wp-content/uploads/2016/07/screen-shot-2016-07-26-at-4-31-52-pm.pngScreen Shot 2016-07-26 at 4.31.52 PMEndocranial surfaces of a human (left, blue) and Neandertal (right, red). From Gunz et al. (2012). These surfaces reflect the size and shape of the brain, blood vessels, cerebrospinal fluid, and meninges.2016-07-26T22:37:16+00:00monthlyhttps://lawnchairanthropology.com/2016/06/02/osteology-everywhere-2/https://lawnchairanthropology.com/wp-content/uploads/2016/06/picture11.pngPicture1Aramis innominate fossils (left) compared with the Almaty Ardi roadside fragment overlain on the reconstructed pelvis (right).https://lawnchairanthropology.com/wp-content/uploads/2016/06/modernfamily-shame-gif.gifModernFamily-Shame-GIFhttps://lawnchairanthropology.com/wp-content/uploads/2016/06/picture1.pngPicture1Roadside paleontology. The Almaty Ardi innominate (left), compared with the actual ARA-VP-1/500 innominate (center) and its reconstruction (right). Adapted from Lovejoy et al. 2009.https://lawnchairanthropology.com/wp-content/uploads/2016/06/2016-05-06-20-11-56.jpg2016-05-06 20.11.562016-06-02T16:01:24+00:00monthlyhttps://lawnchairanthropology.com/2010/11/05/atavisms-talk-about-old-school/https://lawnchairanthropology.com/wp-content/uploads/2010/11/assortment_27_may_2000.jpgAtavisms: talk about old schoolhttps://lawnchairanthropology.com/wp-content/uploads/2010/11/b1b9c-assortment_27_may_2000.jpgb1b9c-assortment_27_may_2000https://lawnchairanthropology.com/wp-content/uploads/2010/11/d0018-assortment_27_may_2000.jpgd0018-assortment_27_may_20002016-05-18T11:00:38+00:00monthlyhttps://lawnchairanthropology.com/2014/11/07/effing-fossil-friday-funky-facial-flanges-fff/https://lawnchairanthropology.com/wp-content/uploads/2014/11/0487.jpeg0487Theropithecus brumpti from the Omo basin. Photo credit: CalPhotos.https://lawnchairanthropology.com/wp-content/uploads/2014/11/screen-shot-2014-11-07-at-9-31-51-am.pngScreen Shot 2014-11-07 at 9.31.51 AMFragmentary skull, viewed from the top, of Papio (a.k.a. Dinopithecus) ingens, from Swartkrans, South Africa. Photo credit: CalPhotos.https://lawnchairanthropology.com/wp-content/uploads/2014/11/ventana.jpgventanaVentana sertichi cranium (Reich et al. 2014, Figure 1a). Left is a 3D CT reconstruction, right is a line drawing highlighting all the individual bones (so many cranial bones). The view is from the right side, so the nose is on the right, the eye is the big hollow in the middle, and the back of the skull is on the left. The jugal flanges are the downward projections.https://lawnchairanthropology.com/wp-content/uploads/2014/11/screen-shot-2014-11-07-at-8-04-27-am.pngScreen Shot 2014-11-07 at 8.04.27 AMVentana sterchi cranium (Reich et al. 2014, Figure 1a). Left is a 3D CT reconstruction, right is a line drawing highlighting all the individual bones (so many cranial bones). The jugal flanges are the downward projections.2021-02-16T20:38:21+00:00monthlyhttps://lawnchairanthropology.com/2016/04/18/materials-from-the-r-workshop-at-aapa2016/https://lawnchairanthropology.com/wp-content/uploads/2016/04/screen-shot-2016-04-17-at-7-18-56-pm.pngScreen Shot 2016-04-17 at 7.18.56 PMLeft: Femur lengths of anatomically modern humans (AMH) and Neandertals. Right: distribution of resampled group differences. Dashed lines bracket 95% of the resampled distribution, and the red line is the observed difference between AMH and Neandertal femur lengths. Only about 1% of the resampled differences are as great as the observed fossil difference.https://lawnchairanthropology.com/wp-content/uploads/2016/04/screen-shot-2016-04-17-at-7-26-21-pm.pngScreen Shot 2016-04-17 at 7.26.21 PMR code for a simple permutation test.https://lawnchairanthropology.com/wp-content/uploads/2016/04/screen-shot-2016-04-17-at-3-48-03-pm.pngScreen Shot 2016-04-17 at 3.48.03 PMExample of some summary stats for the Galton height data.2016-04-18T10:23:59+00:00monthlyhttps://lawnchairanthropology.com/2016/03/24/r-workshop-at-aapa2016/2016-03-24T16:01:27+00:00monthlyhttps://lawnchairanthropology.com/2016/03/15/mtdna-sucks-for-inferring-hominin-relationships/https://lawnchairanthropology.com/wp-content/uploads/2016/03/screen-shot-2016-03-15-at-7-41-46-pm.pngScreen Shot 2016-03-15 at 7.41.46 PMPoint 1 in Northern Spain, is Sima de los Huesos. The rest of the points are other sites where hominin fossils preserve ancient DNA. Figure 1. From Meyer et al. 2013.https://lawnchairanthropology.com/wp-content/uploads/2016/03/screen-shot-2016-03-15-at-6-07-55-pm.pngScreen Shot 2016-03-15 at 6.07.55 PM2016-03-15T15:49:42+00:00monthlyhttps://lawnchairanthropology.com/2016/03/13/sunday-mornings/https://lawnchairanthropology.com/wp-content/uploads/2016/03/pride-predator.pngPride & PredatorA spirited twist on Jane Austen's classic novel.2016-03-13T06:19:28+00:00monthlyhttps://lawnchairanthropology.com/2016/03/07/osteology-everywhere-cakes-or-canines/https://lawnchairanthropology.com/wp-content/uploads/2016/03/21d5c-627.jpg21d5c-627https://lawnchairanthropology.com/wp-content/uploads/2016/03/picture2.pngPicture2Left to right: Homo baursaki, three South African canines, and a modern human (from White et al. 2012). Images not to scale.https://lawnchairanthropology.com/wp-content/uploads/2016/03/picture1.pngPicture1Left: Sts 50, lower left canine. Right: bitten fried bread. Images not to scale.https://lawnchairanthropology.com/wp-content/uploads/2016/03/2016-02-27-23-35-53.jpg2016-02-27 23.35.53Baursak or bite?https://lawnchairanthropology.com/wp-content/uploads/2016/03/2016-02-23-14-50-22.jpg2016-02-23 14.50.22After these drawings, my students were fully trained and ready to tackle the odontological world.2016-03-07T14:48:19+00:00monthlyhttps://lawnchairanthropology.com/2015/05/27/the-stream-severed-spine/https://lawnchairanthropology.com/wp-content/uploads/2015/05/dsc01023.jpgDSC01023https://lawnchairanthropology.com/wp-content/uploads/2015/05/dsc01021.jpgDSC01021Digging out the skull on the west bank, right across from the lumber spine on the east face. The different soil layers ("strata") reflecting different periods of deposition are nicely visible.https://lawnchairanthropology.com/wp-content/uploads/2015/05/dsc01008.jpgDSC01008Died doing a misguided impression of an ostrich.https://lawnchairanthropology.com/wp-content/uploads/2015/05/dsc01007.jpgDSC01007Waist-deep in mud. One vertebra is clearly visible, and to its right, beneath a rock, are the spinous processes of two more vertebrae.https://lawnchairanthropology.com/wp-content/uploads/2015/05/dsc01315.jpgDSC01315https://lawnchairanthropology.com/wp-content/uploads/2015/05/dsc01400.jpgDSC01400https://lawnchairanthropology.com/wp-content/uploads/2015/05/dsc01226.jpgDSC01226https://lawnchairanthropology.com/wp-content/uploads/2015/05/dsc01089.jpgDSC01089https://lawnchairanthropology.com/wp-content/uploads/2015/05/dsc00907.jpgDSC00907Traversing the "Valley of Balls." Hard to be immature about such a beautiful place.2016-03-04T04:31:22+00:00monthlyhttps://lawnchairanthropology.com/2016/02/12/bioanthro-lab-activity-developmental-osteology/https://lawnchairanthropology.com/wp-content/uploads/2016/02/picture13.pngPicture1https://lawnchairanthropology.com/wp-content/uploads/2016/02/screen-shot-2016-02-12-at-11-06-15-am.pngScreen Shot 2016-02-12 at 11.06.15 AMhttps://lawnchairanthropology.com/wp-content/uploads/2016/02/screen-shot-2016-02-12-at-10-56-48-am.pngScreen Shot 2016-02-12 at 10.56.48 AM2016-02-12T05:44:38+00:00monthlyhttps://lawnchairanthropology.com/2016/02/12/osteology-everywhere-vertebral-incidens/https://lawnchairanthropology.com/wp-content/uploads/2016/02/picture12.pngPicture1He said some wonderful things.https://lawnchairanthropology.com/wp-content/uploads/2016/02/picture11.pngPicture1Top: Axis viewed from the front. Bottom: Axis getting pwnd by Atlas. Modified from White et al. 2012.https://lawnchairanthropology.com/wp-content/uploads/2016/02/picture1.pngPicture1Top: Manta ray. Bottom: Atlas viewed from top, anterior is on the bottom (from Scheuer and Black, 200). A and F refer to the age at which the bony portions appear and fuse, respectively.https://lawnchairanthropology.com/wp-content/uploads/2016/02/untitled1.pngUntitledhttps://lawnchairanthropology.com/wp-content/uploads/2016/02/untitled.pngUntitledhttps://lawnchairanthropology.com/wp-content/uploads/2016/02/2016-02-09-16-26-31.jpg2016-02-09 16.26.312016-02-11T18:45:09+00:00monthlyhttps://lawnchairanthropology.com/2016/01/13/did-gdf6-gene-tweak-allow-humans-to-become-upright/https://lawnchairanthropology.com/wp-content/uploads/2016/01/fourth-proximal-pedal-phalanges.pngFourth Proximal Pedal PhalangesThese little piggies get none. Fourth toe bones of living apes and humans (left) and possible hominins from 3-5 million years ago (right).https://lawnchairanthropology.com/wp-content/uploads/2016/01/picture1.pngPicture1Figures 5-6 from Indjeian et al. (2016) sum up the findings. Figure 5 (left) shows that the ancestral version of the GDF6 enhancer (blue staining) is most strongly expressed in the lower limb, especially the fifth toe bone. Figure 6 (right) shows that a lack of GDF6 expression (black bars) results in shorter skull and toe bones. Combining these findings, humans lack a gene enhancer associated with the development of long lateral toes.https://lawnchairanthropology.com/wp-content/uploads/2016/01/screen-shot-2016-01-09-at-1-12-01-pm.pngScreen Shot 2016-01-09 at 1.12.01 PMFig. 4A from Indjeian et al. 2016. A stretch of DNA, "hCONDEL.306" is completely missing in humans (as is another stretch, hCONDEL.305) but otherwise very similar between chimpanzees, monkeys and mice.https://lawnchairanthropology.com/wp-content/uploads/2016/01/gdf6-headlines.pngGDF6 headlinessmh.2016-01-18T12:03:41+00:00monthlyhttps://lawnchairanthropology.com/2016/01/15/updated-bioanthro-syllabi/2016-01-15T08:54:30+00:00monthlyhttps://lawnchairanthropology.com/2016/01/01/fossilfriday-2015-retrospecticus/https://lawnchairanthropology.com/wp-content/uploads/2016/01/ledi-geraru-compared.pngLedi geraru comparedThe reconstructed Ledi Geraru mandible (top left), compared with Homo naledi (top right), Australopithecus deyiremeda (bottom left), and the Uraha early Homo mandible from Malawi (bottom right).https://lawnchairanthropology.com/wp-content/uploads/2016/01/screen-shot-2016-01-01-at-12-27-47-pm.pngScreen Shot 2016-01-01 at 12.27.47 PM3D scan and geographical location of Lomekwian tools. From africanfossils.orghttps://lawnchairanthropology.com/wp-content/uploads/2016/01/377.png377https://lawnchairanthropology.com/wp-content/uploads/2016/01/penghu-manot.pngPenghu & ManotLeft: Penghu hemi-mandible (Chang et al. 2015: Fig. 3), viewed from the outside (top) and inside (bottom). Right: Manot 1 partial cranium (Hershkovitz et al. 2015: Fig. 2), viewed from the left (top) and back (bottom).https://lawnchairanthropology.com/wp-content/uploads/2016/01/er-5881-hip-51621-molar.pngER 5881 hip & 51621 molarModified figures X from Maddux et al. (2015) and 13 from Ward et al. (2015). https://lawnchairanthropology.com/wp-content/uploads/2016/01/miles-3-101412830377001.jpgMiles 3-1014+1283+0377+001Homo naledi mandibles in order from least to most worn teeth.https://lawnchairanthropology.com/wp-content/uploads/2015/12/summerof4ft26_thumb.pngsummerof4ft26_thumb2016-01-01T15:10:48+00:00monthlyhttps://lawnchairanthropology.com/2015/01/07/another-small-middle-pleistocene-person/https://lawnchairanthropology.com/wp-content/uploads/2015/01/knm-wt-51261.jpgKNM-WT 51261Occlusal area for hominin first molars. The tooth is from Fig. 2 and the plot from Fig. 3 in the paper.2016-01-01T03:57:53+00:00monthlyhttps://lawnchairanthropology.com/2015/06/12/effing-fossilfriday-rekindling-an-old-friends-hip/https://lawnchairanthropology.com/wp-content/uploads/2015/06/untitled1.pngUntitledFigure 5 from Ward et al. shows the fossil. Jump for joy that it's complete enough for us to tell it comes from the left side!https://lawnchairanthropology.com/wp-content/uploads/2015/06/screen-shot-2015-06-12-at-6-23-52-pm.pngScreen Shot 2015-06-12 at 6.23.52 PMFigure 3 from Ward et al. 2015.2016-01-01T03:21:51+00:00monthlyhttps://lawnchairanthropology.com/2015/01/09/effing-fossil-friday-subfossil-lemurs-fff/https://lawnchairanthropology.com/wp-content/uploads/2015/01/f_nsf_fossilgraveyard_150108.jpgf_nsf_fossilgraveyard_150108Two lemur crania in an underwater cave on Madagascar. Photo from nbcnews.com.2016-01-01T02:45:03+00:00monthlyhttps://lawnchairanthropology.com/2015/11/07/bioanthro-lab-activity-sexual-dimorphism/https://lawnchairanthropology.com/wp-content/uploads/2015/11/class-dimorphism-compared.pngclass dimorphism comparedSexual dimorphism in our classroom compared with what is seen in primates with different mating systems and levels male-male competition. Our class values are the stars, and in the right plot blue is males and green is females. Figures from Plavcan (2012) and Nelson & Schultz (2010).https://lawnchairanthropology.com/wp-content/uploads/2015/11/screen-shot-2015-11-07-at-12-07-32-pm.pngScreen Shot 2015-11-07 at 12.07.32 PMBrain-body allometry in our classroom. Males and females in our classroom do not seem to deviate appreciably from a common pattern of allometry.https://lawnchairanthropology.com/wp-content/uploads/2015/11/screen-shot-2015-11-07-at-11-48-21-am.pngScreen Shot 2015-11-07 at 11.48.21 AMSexual dimorphism in brain size (left), body size (center), and brain/body size.2015-11-16T04:00:29+00:00monthlyhttps://lawnchairanthropology.com/2015/11/08/osteology-everywhere-bacon-or-first-rib/https://lawnchairanthropology.com/wp-content/uploads/2015/11/hominin-ribs.pngHominin ribsFull stack of ribs. From left to right: Human, bacon, Homo naledi, Dmanisi Homo erectus, Australopithecus sediba (x2), Australopithecus afarensis specimen "Lucy," Ardipithecus ramidus, and chimpanzee. Images not to scale except Lucy and Ardi.https://lawnchairanthropology.com/wp-content/uploads/2015/11/ribs.pngHominin first ribs compared with a modern human (far left) and chimpanzee (far right). From left to right:https://lawnchairanthropology.com/wp-content/uploads/2015/11/untitled2.pngUntitledFragmentary first ribs. Homo naledi (left) vs. bacon (right). H. naledi rib 3D surface download here.https://lawnchairanthropology.com/wp-content/uploads/2015/11/untitled1.pngUntitledFirst ribs, from left to right: Human, chimpanzee, bacon. First two images from eSkeletons.org.https://lawnchairanthropology.com/wp-content/uploads/2015/11/dus9azx.gifdus9AzXThe Ron Swanson diet.https://lawnchairanthropology.com/wp-content/uploads/2015/11/ljqekgt.gifljQEkGThttps://lawnchairanthropology.com/wp-content/uploads/2015/11/2015-11-08-14-09-52.jpg2015-11-08 14.09.52More bacon, please.2015-11-08T18:46:25+00:00monthlyhttps://lawnchairanthropology.com/2015/10/30/bioanthro-lab-activity-what-species-is-it/https://lawnchairanthropology.com/wp-content/uploads/2015/10/untitled2.pngUntitledEarly Pleistocene hominin mandibles. Left to right: KNM-ER 3230, ER 60000 ("mystery" jaw) and ER 1802.https://lawnchairanthropology.com/wp-content/uploads/2015/10/snapshot300.pngsnapshot300Early Pleistocene hominin mandibles. Left to right: KNM-ER 3230, ER 60000 and ER 1802.https://lawnchairanthropology.com/wp-content/uploads/2015/10/screen-shot-2015-10-30-at-10-42-22-am.pngScreen Shot 2015-10-30 at 10.42.22 AMhttps://lawnchairanthropology.com/wp-content/uploads/2015/10/taxonomy.pngTaxonomyScrutinizing fossils to determine their taxonomic attribution. (Science credit)https://lawnchairanthropology.com/wp-content/uploads/2015/10/untitled1.pnguntitledEarly Pleistocene hominin fossils from Kenya. Left to right: KNM-ER 406, ER 62000 and ER 1470.https://lawnchairanthropology.com/wp-content/uploads/2015/10/snapshot02.pngsnapshot02Early Pleistocene hominin crania from Kenya. Left to right: KNM-ER 406, ER 62000 and ER 1470. 3D scans of original fossils from africanfossils.orghttps://lawnchairanthropology.com/wp-content/uploads/2015/10/snapshot01.pngsnapshot01Early Pleistocene hominin crania from Kenya. Left to right: KNM-ER 406, ER 62000, and ER 1470. 3D scans from africanfossils.org.2015-10-30T05:49:10+00:00monthlyhttps://lawnchairanthropology.com/2015/09/28/bioanthro-lab-activity-primate-proportions/https://lawnchairanthropology.com/wp-content/uploads/2015/09/screen-shot-2015-09-28-at-8-46-53-pm.pngScreen Shot 2015-09-28 at 8.46.53 PMMeasuring siamang (Symphalangus syndactylus) limb lengths with Meshlab. Data credit.https://lawnchairanthropology.com/wp-content/uploads/2015/09/anigif_enhanced-buzz-12996-1386090648-41.gifanigif_enhanced-buzz-12996-1386090648-41Image credit.https://lawnchairanthropology.com/wp-content/uploads/2015/09/anigif_enhanced-buzz-28237-1386098998-8.gifanigif_enhanced-buzz-28237-1386098998-8Image credit.2015-10-26T09:10:29+00:00monthlyhttps://lawnchairanthropology.com/2015/09/18/bioanthro-lab-activity-estimating-miocene-ape-body-mass/https://lawnchairanthropology.com/wp-content/uploads/2015/09/picture1.pngPicture1Let's measure that femur head diameter.https://lawnchairanthropology.com/wp-content/uploads/2015/09/capture2.jpgCaptureA grivet, Chlorocebus aethiops, with bone highlighted in 2D sections and as a 3D model.https://lawnchairanthropology.com/wp-content/uploads/2015/09/capture1.jpgCaptureOne of the KUPRI specimens, an old female gorilla, with known weight.https://lawnchairanthropology.com/wp-content/uploads/2015/09/capture.jpgCapturePossible evolutionary relationships of myriad Miocene apes and subsequent hominins. From Harrison (2010)2015-09-18T12:12:39+00:00monthlyhttps://lawnchairanthropology.com/2015/09/14/homo-naledi-in-a-lawn-chair/https://lawnchairanthropology.com/wp-content/uploads/2015/09/2015-09-10-12-36-08.png2015-09-10 12.36.08https://lawnchairanthropology.com/wp-content/uploads/2015/09/2015-09-10-11-25-31.jpg2015-09-10 11.25.31Markus Bastir holds up the heaviest copy of National Geographic ever.https://lawnchairanthropology.com/wp-content/uploads/2015/09/2015-09-10-10-10-35.jpg2015-09-10 10.10.35eLife press conference last Thursday. From left to right: Will Harcourt-Smith, Matthew Skinner, Noel Cameron, Alia Gurtov and Tracy Kivell.2015-09-15T04:17:46+00:00monthlyhttps://lawnchairanthropology.com/2015/09/06/a-new-year-of-bioanthro-lab-activities/https://lawnchairanthropology.com/wp-content/uploads/2015/09/datalines.pngData&linesThe relationship between head circumference and brain volume in adult humans. Note each regression line is based on different age groups.2018-02-25T02:15:02+00:00monthlyhttps://lawnchairanthropology.com/2015/07/27/osteology-everywhere-vertebeer-fest/https://lawnchairanthropology.com/wp-content/uploads/2015/07/vertebeer2.pngVertebeer2a) Our mystery vertebra. b) a lumbar vertebra from White et al. (2012). c) views of the right and front side of the Australopithecus africanus fossil StW H41, from Sanders (1998, Fig. 1).https://lawnchairanthropology.com/wp-content/uploads/2015/07/vertebeer.pngVertebeerNo ordinary tree stumphttps://lawnchairanthropology.com/wp-content/uploads/2015/07/dsc02219.jpgDSC02219Every year for the Festival they replace the river water with beer.https://lawnchairanthropology.com/wp-content/uploads/2015/07/dsc02212.jpgDSC02212Beer still my heart.https://lawnchairanthropology.com/wp-content/uploads/2015/07/dsc02202.jpgDSC02202Dark Horse Brewing Co. pumping out the brews and blasting t-shirts into the crowd.2015-07-27T14:54:59+00:00monthlyhttps://lawnchairanthropology.com/2011/02/11/why-lucy-what-sweet-kicks-you-had/https://lawnchairanthropology.com/wp-content/uploads/2011/02/al333-1602bfoot1.jpgWhy Lucy, what sweet kicks you hadhttps://lawnchairanthropology.com/wp-content/uploads/2011/02/al333-1602bfoot.jpgWhy Lucy, what sweet kicks you hadhttps://lawnchairanthropology.com/wp-content/uploads/2011/02/72246-al333-1602bfoot.jpg72246-al333-1602bfoothttps://lawnchairanthropology.com/wp-content/uploads/2011/02/4e266-al333-1602bfoot.jpg4e266-al333-1602bfoothttps://lawnchairanthropology.com/wp-content/uploads/2011/02/8a4d2-al333-1602bfoot.jpg8a4d2-al333-1602bfoothttps://lawnchairanthropology.com/wp-content/uploads/2011/02/c1112-al333-1602bfoot.jpgc1112-al333-1602bfoot2015-07-20T02:48:24+00:00monthlyhttps://lawnchairanthropology.com/2013/05/11/arm-and-leg-modelling/https://lawnchairanthropology.com/wp-content/uploads/2013/05/untitled.pngArm and leg modellinghttps://lawnchairanthropology.com/wp-content/uploads/2013/05/gibbonlimbproportionontogeny-schultz.jpgArm and leg modellinghttps://lawnchairanthropology.com/wp-content/uploads/2013/05/699b6-gibbonlimbproportionontogeny-schultz.jpg699b6-gibbonlimbproportionontogeny-schultzhttps://lawnchairanthropology.com/wp-content/uploads/2013/05/b67aa-untitled.pngb67aa-untitledhttps://lawnchairanthropology.com/wp-content/uploads/2013/05/559f7-gibbonlimbproportionontogeny-schultz.jpg559f7-gibbonlimbproportionontogeny-schultzhttps://lawnchairanthropology.com/wp-content/uploads/2013/05/a59d6-untitled.pnga59d6-untitledhttps://lawnchairanthropology.com/wp-content/uploads/2013/05/29265-untitled.png29265-untitledhttps://lawnchairanthropology.com/wp-content/uploads/2013/05/c2d4b-gibbonlimbproportionontogeny-schultz.jpgc2d4b-gibbonlimbproportionontogeny-schultz2015-07-11T15:26:28+00:00monthlyhttps://lawnchairanthropology.com/2015/06/20/osteology-everywhere-barcade-bone-biology/https://lawnchairanthropology.com/wp-content/uploads/2015/06/msp4271gc046f64ab6aaf4000051a17cch7b6e1a61.gifMSP4271gc046f64ab6aaf4000051a17cch7b6e1a61The tortuous path from the center of Eursia to the center of the US, a mere 8500 miles since there are no direct flights. Map made by Wolfram Alpha.https://lawnchairanthropology.com/wp-content/uploads/2015/06/untitled3.pngUntitledCross section through cortical bone, magnified to highlight an osteon. The big hole in the center is the Haversian canal, and the smaller satellite holes are lacunae housing osteocytes.https://lawnchairanthropology.com/wp-content/uploads/2015/06/untitled2.pngUntitledSection through a human proximal femur (hip joint). Note the trabecular or "spongy" bone filling the top, in comparison with the thick and dense cortical bone of the shaft in the bottom left. Image credit.https://lawnchairanthropology.com/wp-content/uploads/2015/06/20150618_003612.jpg20150618_003612https://lawnchairanthropology.com/wp-content/uploads/2015/06/20150618_002651.jpg20150618_002651Go for the bottom, go for the top.2015-06-20T16:06:56+00:00monthlyhttps://lawnchairanthropology.com/2015/06/19/kazakhstan-on-earthcapture/https://lawnchairanthropology.com/wp-content/uploads/2015/06/dsc01406.jpgDSC01406Spilt milk.2015-06-19T03:44:36+00:00monthlyhttps://lawnchairanthropology.com/2013/02/03/whats-the-best-thing-about-teaching-population-genetics/2015-06-11T04:02:29+00:00monthlyhttps://lawnchairanthropology.com/2015/05/28/quick-thought-on-the-australopithecus-deyiremeda-maxilla/https://lawnchairanthropology.com/wp-content/uploads/2015/05/untitled4.pngUntitledExtended Figure 1h from the paper, with a Demirjian developmental stages, modifed from Table 2 from Kuykendall et al., 1996. Compare the M2 roots with completed roots of the M1 (to the left).https://lawnchairanthropology.com/wp-content/uploads/2015/05/untitled2.pngUntitledExtended Figure 1d from the paper. Same fossil, but from the bottom, like a dentist peering into its mouth. Back is to the bottom.https://lawnchairanthropology.com/wp-content/uploads/2015/05/untitled1.pngUntitledExtended Figure 1a from the paper. The type specimnen BRT-VP-3/1 maxilla. Front is to the left.2015-05-28T09:30:01+00:00monthlyhttps://lawnchairanthropology.com/2015/01/20/osteology-everywhere-graffiti/https://lawnchairanthropology.com/wp-content/uploads/2015/01/lemonoftroy3.pnglemonoftroy3Dire consequences await those who graffito tag public property.https://lawnchairanthropology.com/wp-content/uploads/2015/01/20141013_141725.jpg20141013_141725https://lawnchairanthropology.com/wp-content/uploads/2015/01/2011-11-12_14-41-32_247.jpg2011-11-12_14-41-32_247https://lawnchairanthropology.com/wp-content/uploads/2015/01/gilbert-asfaw-cover.jpgGilbert & Asfaw coverSeem familiar?https://lawnchairanthropology.com/wp-content/uploads/2015/01/daka-asfaw-al-2002.jpgDAKA Asfaw &al 2002The Daka calvaria (Figure 2. of Asfaw et al., 2002). Counterclockwise from the top left: view from the back, view from the top (front is to the left), view from the left, a mosquito net, view from the bottom (front is at the top), viewed from the front.https://lawnchairanthropology.com/wp-content/uploads/2015/01/2015-01-17-14-34-37.jpg2015-01-17 14.34.37https://lawnchairanthropology.com/wp-content/uploads/2015/01/2013-07-14-12-14-35.jpg2013-07-14 12.14.35But it was in München.2015-05-27T17:15:17+00:00monthlyhttps://lawnchairanthropology.com/2015/04/19/virtual-paleontology-activity/https://lawnchairanthropology.com/wp-content/uploads/2015/04/showcase-results-copy.pngShowcase Results copyBoxplots showing participants' data, for two measurements on each of the fossils. The blue stars mark the published values. The red rugs on either side indicate measurements taken on the scans (left side) or printed casts (right).https://lawnchairanthropology.com/wp-content/uploads/2015/04/2015-04-14-16-10-21.jpg2015-04-14 16.10.21The Virtual Paleontology Labhttps://lawnchairanthropology.com/wp-content/uploads/2015/04/comparison.pngcomparisonLower jaw of an infant Australopithecus boisei (KNM ER 1477). Left is the plastic cast printed from the laser scan on the right.2015-04-19T10:17:30+00:00monthlyhttps://lawnchairanthropology.com/2015/03/23/aapa2015/https://lawnchairanthropology.com/wp-content/uploads/2015/03/rplot-copy.jpgRplot copy2015-03-23T15:56:58+00:00monthlyhttps://lawnchairanthropology.com/2015/03/18/talk-at-uw-madison-tomorrow/https://lawnchairanthropology.com/wp-content/uploads/2015/03/caokjksuuaa0lxf.pngCAOkjksUUAA0Lxfhttps://lawnchairanthropology.com/wp-content/uploads/2015/03/msp5871hcee8hcg45d7dc900006644e8ifed39a619.gifMSP5871hcee8hcg45d7dc900006644e8ifed39a619Image from Wolfram Alpha.2015-03-17T22:40:19+00:00monthlyhttps://lawnchairanthropology.com/2015/03/12/australopithecus-boisei-bites/https://lawnchairanthropology.com/wp-content/uploads/2015/03/australopithecus-manti.jpgAustralopithecus mantiThey all look so delicious!https://lawnchairanthropology.com/wp-content/uploads/2015/03/2015-03-11-21-38-26.jpg2015-03-11 21.38.262015-03-12T17:27:04+00:00monthlyhttps://lawnchairanthropology.com/2015/03/11/shockingly-alarming-pedagogical-discovery/https://lawnchairanthropology.com/wp-content/uploads/2015/03/screen-shot-2015-03-11-at-12-00-26-am.pngScreen Shot 2015-03-11 at 12.00.26 AMFigure 2. Same variables plotted as in the previous figure, but for a second class.https://lawnchairanthropology.com/wp-content/uploads/2015/03/screen-shot-2015-03-10-at-11-29-06-pm.pngScreen Shot 2015-03-10 at 11.29.06 PMSame relationships as in Figure 1, for a second course.https://lawnchairanthropology.com/wp-content/uploads/2015/03/262-midterms-copy.jpg262 midterms copyMidterm exam scores (out of 32 points) plotted against class attendance (left) and participation grades (right). Participation is based on in-class quizzes over readings, and so measures students exposure to both lecture and reading.2015-03-10T19:01:51+00:00monthlyhttps://lawnchairanthropology.com/2015/02/12/a-neonatal-perspective-on-homo-erectus-brain-growth/https://lawnchairanthropology.com/wp-content/uploads/2015/02/mojo.jpgmojoThe Mojokerto infant Homo erectus. The fossil as preserved is on the left, and on the right is the reconstructed brain based of CT scans of the fossil (Figure x from Balzeau et al., 2005). The fossil and endocast are viewed from the right side so the front of the fossil is to the right.2015-02-12T12:28:39+00:00monthlyhttps://lawnchairanthropology.com/2015/01/24/effing-fossilfriday-toolmakers-without-tools/https://lawnchairanthropology.com/wp-content/uploads/2015/01/foot-xray.pngfoot xrayAn X-ray of my foot. Note that most of the individual foot bones are filled with tiny 'spicules' (=trabeculae) of bone. Very often they have a very directed, or non-random, orientation, such as in the heel.2015-01-23T21:05:43+00:00monthlyhttps://lawnchairanthropology.com/2014/12/13/2015-aapa-conference-more-brain-growth/https://lawnchairanthropology.com/wp-content/uploads/2014/12/teaser.jpgteaserVelocity curve for brain size from birth to 5 years in wild (green) and caprive (blue) chimpanzees. For the captive models, the dashed line is fit to the raw brain masses, and the solid line is fit to the estimated endocranial volumes.2015-01-17T05:51:47+00:00monthlyhttps://lawnchairanthropology.com/2014/12/30/driving-nails-into-the-2014-lawn-chair/https://lawnchairanthropology.com/wp-content/uploads/2014/12/georgia-dinos-2014.jpgGeorgia dinos 2014https://lawnchairanthropology.com/wp-content/uploads/2014/12/dimorphism-ratios-copy.jpgDimorphism ratios copy2015-01-14T17:52:15+00:00monthlyhttps://lawnchairanthropology.com/2012/06/28/results-teaser/https://lawnchairanthropology.com/wp-content/uploads/2012/06/fig4-sizegrowthcurve.jpegResults teaserhttps://lawnchairanthropology.com/wp-content/uploads/2012/06/48868-fig4-sizegrowthcurve.jpeg48868-fig4-sizegrowthcurvehttps://lawnchairanthropology.com/wp-content/uploads/2012/06/e4f27-fig4-sizegrowthcurve.jpege4f27-fig4-sizegrowthcurvehttps://lawnchairanthropology.com/wp-content/uploads/2012/06/db20d-fig4-sizegrowthcurve.jpegdb20d-fig4-sizegrowthcurve2014-12-08T05:33:15+00:00monthlyhttps://lawnchairanthropology.com/2014/12/06/kazakhstans-killer-cats/https://lawnchairanthropology.com/wp-content/uploads/2014/12/screen-shot-2014-11-28-at-8-44-01-pm.pngScreen Shot 2014-11-28 at 8.44.01 PMFrom Sotnikova, 1992. Original caption: Fig. 2. Machairodus kurteni, Kalmakpai (PIN-2433/287), skull, ventral and lateral view.2014-12-06T11:39:45+00:00monthlyhttps://lawnchairanthropology.com/2014/12/03/results-of-the-toe-tally-easy-lab-activity/https://lawnchairanthropology.com/wp-content/uploads/2014/12/ardi-results.jpgArdi resultsDorsal canting angle of the fourth proximal pedal phalanx in primates.https://lawnchairanthropology.com/wp-content/uploads/2014/12/angle-measurement.jpgAngle measurementUse ImageJ to measure the canting angle between the proximal joint and plantar surface. Proximal to the right, distal to the left.2015-03-31T02:46:08+00:00monthlyhttps://lawnchairanthropology.com/2014/11/16/lessons-from-limb-lab-activity/https://lawnchairanthropology.com/wp-content/uploads/2014/11/class-models-both-copy.jpgclass models both copyhttps://lawnchairanthropology.com/wp-content/uploads/2014/11/lab-4-both-plots-copy.jpglab 4 both plots copyLeft: Crural index (tibia length/femur length) related to latitude, as a proxy for climate. Right: Brachial index (radius length/humerus length) plotted against latitude. Data from Kurki et al. (2008). Black=female, red=male. Dashed lines are regression slopes for each sex, and solid lines indicate the 95% confidence limits of the regression lines.2014-11-16T13:59:35+00:00monthlyhttps://lawnchairanthropology.com/2014/10/24/effing-fossil-friday-frozen-femur/https://lawnchairanthropology.com/wp-content/uploads/2014/10/screen-shot-2014-10-24-at-11-26-31-am.pngScreen Shot 2014-10-24 at 11.26.31 AMhttps://lawnchairanthropology.com/wp-content/uploads/2014/10/screen-shot-2014-10-24-at-11-19-15-am.pngScreen Shot 2014-10-24 at 11.19.15 AMThe site in question, Ust'-Ishim is marked by the yellow star. The red and blue sites to the southeast are other Upper Paleolithic sites. Okladnikov (3) and Denisova (4) have also yielded fossils preserving ancient DNA.2014-10-24T06:44:06+00:00monthlyhttps://lawnchairanthropology.com/2014/09/29/osteology-everywhere-pollicem-vertebrae-latin-puns-are-hard/https://lawnchairanthropology.com/wp-content/uploads/2014/09/7eea3-florencey.jpg7eea3-florenceyhttps://lawnchairanthropology.com/wp-content/uploads/2014/09/helmertcomparison.jpghelmertcomparisonMiddle lumbar vertebrae, from the cranial view (modified from Figs. 3-4 of Moyà-Solà et al., 2004). 0=modern baboon, A=Proconsul nyanzae (KNM-MW 13142-J)(B) P. catalaunicus (IPS-21350.59). (C) Cast of Morotopithecus bishopi (UPM 67.28) from Moroto (Uganda). (D) D. laietanus (IPS-18000) from Can Llobateres (Spain). (E) Pongo pygmaeushttps://lawnchairanthropology.com/wp-content/uploads/2014/09/helert.jpghelerthttps://lawnchairanthropology.com/wp-content/uploads/2014/09/2014-09-19-12-50-48.jpg2014-09-19 12.50.48Ambush of hail.2014-09-28T19:02:52+00:00monthlyhttps://lawnchairanthropology.com/2014/09/20/my-eshe-poster-is-gona-blow-your-mind/https://lawnchairanthropology.com/wp-content/uploads/2014/09/screen-shot-2014-09-20-at-9-33-38-am.pngScreen Shot 2014-09-20 at 9.33.38 AM2014-09-20T07:46:24+00:00monthlyhttps://lawnchairanthropology.com/2014/09/06/osteology-everywhere-literally/https://lawnchairanthropology.com/wp-content/uploads/2014/09/2014-08-31-14-16-18.jpg2014-08-31 14.16.18Mangystau boasts an embarrassment of turtle bones and shells.https://lawnchairanthropology.com/wp-content/uploads/2014/09/2014-08-31-08-40-34.jpg2014-08-31 08.40.34I will admit I have no idea what animal this comes from, but I would guess some small mammal. If you know, please tell!https://lawnchairanthropology.com/wp-content/uploads/2014/09/2014-08-31-15-36-26.jpg2014-08-31 15.36.26A small, noble beast.https://lawnchairanthropology.com/wp-content/uploads/2014/09/2014-08-30-16-19-54.jpg2014-08-30 16.19.54A horse doing its best impression of SK 46.https://lawnchairanthropology.com/wp-content/uploads/2014/09/2014-08-30-14-09-37.jpg2014-08-30 14.09.37Hip off the old block.https://lawnchairanthropology.com/wp-content/uploads/2014/09/2014-08-30-16-23-31.jpg2014-08-30 16.23.31This little buddy wants nothing to do with everything.https://lawnchairanthropology.com/wp-content/uploads/2014/09/2014-08-30-09-06-23.jpg2014-08-30 09.06.23Some buddies on their way to work.https://lawnchairanthropology.com/wp-content/uploads/2014/09/2014-08-30-17-31-29.jpg2014-08-30 17.31.292014-09-06T04:46:33+00:00monthlyhttps://lawnchairanthropology.com/2014/07/12/effing-fossil-friday-feathers-ink/https://lawnchairanthropology.com/wp-content/uploads/2014/07/untitled.jpgUntitledExtended Data Fig. 4a-b from Foth et al., 2014.2014-07-12T14:53:57+00:00monthlyhttps://lawnchairanthropology.com/2014/06/28/osteology-everywhere-astana/https://lawnchairanthropology.com/wp-content/uploads/2014/06/2014-06-20-21-57-37.jpg2014-06-20 21.57.37https://lawnchairanthropology.com/wp-content/uploads/2014/06/2014-06-28-13-18-45.jpg2014-06-28 13.18.45https://lawnchairanthropology.com/wp-content/uploads/2014/06/2014-06-28-13-18-11.jpg2014-06-28 13.18.11https://lawnchairanthropology.com/wp-content/uploads/2014/06/2014-06-28-13-20-45.jpg2014-06-28 13.20.45https://lawnchairanthropology.com/wp-content/uploads/2014/06/2014-06-28-13-21-20.jpg2014-06-28 13.21.20BONES!https://lawnchairanthropology.com/wp-content/uploads/2014/06/2014-06-28-13-07-46.jpg2014-06-28 13.07.46https://lawnchairanthropology.com/wp-content/uploads/2014/06/2014-06-28-13-43-25.jpg2014-06-28 13.43.25Hello, old town.https://lawnchairanthropology.com/wp-content/uploads/2014/06/2014-06-24-21-04-36.jpgSwamp & Cityhttps://lawnchairanthropology.com/wp-content/uploads/2014/06/2014-06-26-21-55-48.jpg2014-06-26 21.55.48Building a dream2014-06-29T11:32:48+00:00monthlyhttps://lawnchairanthropology.com/2014/06/20/effing-fossil-friday/https://lawnchairanthropology.com/wp-content/uploads/2014/06/20140601_160436.jpg20140601_160436https://lawnchairanthropology.com/wp-content/uploads/2014/06/new-sh-crania-9-15-17_arsuaga-al-2014.jpgSH CraniaCrania 9, 15 and 17 (clockwise from top left). Cranium 9 is an early adolescent and the other two are adults - lookit how the facial anatomy changes with age!https://lawnchairanthropology.com/wp-content/uploads/2014/06/rom62932.jpgROM62932A Metaspriggina giving the snake eyes. Or primitive fish eyes. Sultry either way.https://lawnchairanthropology.com/wp-content/uploads/2014/06/lion.jpgLion2014-06-20T12:23:49+00:00monthlyhttps://lawnchairanthropology.com/2014/04/18/dawn-of-paleoepigenomics/2014-04-18T09:15:29+00:00monthlyhttps://lawnchairanthropology.com/2014/04/10/aapa2014/https://lawnchairanthropology.com/wp-content/uploads/2014/04/aapa-2014-poster-copy.jpgAAPA 2014 Poster2014-04-10T01:26:29+00:00monthlyhttps://lawnchairanthropology.com/2014/04/02/its-that-time-in-the-semester/https://lawnchairanthropology.com/wp-content/uploads/2014/04/erectine1.jpgerectinehttps://lawnchairanthropology.com/wp-content/uploads/2014/04/habiline.jpghabiline2014-04-02T03:08:27+00:00monthlyhttps://lawnchairanthropology.com/2014/03/10/ima-gona-follow-up-on-that-last-post/https://lawnchairanthropology.com/wp-content/uploads/2014/03/pontzer-data-compared-copy-2.jpgPontzer data compared copy 2Hip joint size variation in living African apes (left and right) compared with fossil humans (genus Homo older than 1 mya, center). Each plot is scaled to show the same y-axis range. On the left are ratios of max/min from resampled pairs from each species (sex not taken into account). On the right are ratios of male/female from resampled pairs from each species. The red dots on this plot are the medians for max/min ratios (the thick black bars in the left plot). The center plot shows ratios of Homo/Gona.2014-03-10T17:36:05+00:00monthlyhttps://lawnchairanthropology.com/2014/02/14/paleogenomics-is-crushing-it-right-now/https://lawnchairanthropology.com/wp-content/uploads/2014/02/rasmussen.jpgrasmussenhttps://lawnchairanthropology.com/wp-content/uploads/2014/02/sanakararaman.jpgsanakararamanhttps://lawnchairanthropology.com/wp-content/uploads/2014/02/olalde-title.jpgOlalde titlehttps://lawnchairanthropology.com/wp-content/uploads/2014/02/prufer-title.jpgPrufer titlehttps://lawnchairanthropology.com/wp-content/uploads/2014/02/meyer-title-copy-2.jpgMeyer title copy 22014-02-14T14:47:10+00:00monthlyhttps://lawnchairanthropology.com/2013/12/05/this-human-dna-is-old-as-hell/2014-02-14T09:39:16+00:00monthlyhttps://lawnchairanthropology.com/2014/02/07/friday-excitement-panoramic-data-inspection/https://lawnchairanthropology.com/wp-content/uploads/2014/02/datafriday.jpgData panoramaUsing two monitors helps when checking data for errors and patterns2014-02-07T13:57:16+00:00monthlyhttps://lawnchairanthropology.com/2013/08/04/mandible-as-a-measure-of-overall-body-size/https://lawnchairanthropology.com/wp-content/uploads/2013/08/jawbody.jpgLength of the back of the ramus to the P4, plotted against measures of body size.https://lawnchairanthropology.com/wp-content/uploads/2013/08/screen-shot-2013-08-04-at-4-49-04-pm.pngScreen Shot 2013-08-04 at 4.49.04 PMMatrix of correlations between body and mandibular measurements in Gorillas. 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Blue/red indicate presence of a given enhancer. The white/blue images are actual mouse embryos, from younger (left) to older (right). Each green/red image is a 3D reconstruction of the blue/white embryo above, based on optical projection tomography.2013-11-03T05:57:17+00:00monthlyhttps://lawnchairanthropology.com/2013/10/31/is-it-worth-seeking-a-genetic-basis-for-math-genius/2013-10-31T09:31:34+00:00monthlyhttps://lawnchairanthropology.com/2013/10/23/the-small-big-new-dmanisi-skull/https://lawnchairanthropology.com/wp-content/uploads/2013/10/d4500-brains.jpegBrain size in early human evolutionEndocranial volume for various fossil hominin fossils. 1: Australopithecus afarensis, africanus & boisei; 2: Dmanisi specimens; 3: "habilines" 4: early African Homo erectus; 5: Indonesian and Chinese Homo erectus2013-10-26T22:29:55+00:00monthlyhttps://lawnchairanthropology.com/2013/10/05/more-free-badass-bioanthro-science-resources/2013-10-05T17:30:36+00:00monthlyhttps://lawnchairanthropology.com/2012/11/06/the-beardless-white-house-part-i/https://lawnchairanthropology.com/wp-content/uploads/2012/11/c5d41-presidents.pngc5d41-presidentshttps://lawnchairanthropology.com/wp-content/uploads/2012/11/6776d-presidents.png6776d-presidentshttps://lawnchairanthropology.com/wp-content/uploads/2012/11/presidents.pngThe beardless White House: Part Ihttps://lawnchairanthropology.com/wp-content/uploads/2012/11/ec912-presidents.pngec912-presidents2013-08-04T13:37:43+00:00monthlyhttps://lawnchairanthropology.com/2013/05/26/kazakhstan-paleolithic-fieldwork-valikhanova/https://lawnchairanthropology.com/wp-content/uploads/2013/05/2013-05-2116-06-41.jpgKazakhstan Paleolithic fieldwork: Valikhanovahttps://lawnchairanthropology.com/wp-content/uploads/2013/05/2013-05-2210-29-14.jpgKazakhstan Paleolithic fieldwork: Valikhanovahttps://lawnchairanthropology.com/wp-content/uploads/2013/05/kzpaleo-valikhanovasite.jpgKazakhstan Paleolithic fieldwork: Valikhanovahttps://lawnchairanthropology.com/wp-content/uploads/2013/05/2013-05-2020-40-38.jpgKazakhstan Paleolithic fieldwork: Valikhanovahttps://lawnchairanthropology.com/wp-content/uploads/2013/05/2013-05-2020-37-09.jpgKazakhstan Paleolithic fieldwork: Valikhanovahttps://lawnchairanthropology.com/wp-content/uploads/2013/05/2013-05-2419-52-28.jpgKazakhstan Paleolithic fieldwork: 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topshttps://lawnchairanthropology.com/wp-content/uploads/2012/11/18c35-georgiapeachyii149.jpg18c35-georgiapeachyii149https://lawnchairanthropology.com/wp-content/uploads/2012/11/2902d-muffintops.jpg2902d-muffintopshttps://lawnchairanthropology.com/wp-content/uploads/2012/11/af6d7-georgiapeachyii149.jpgaf6d7-georgiapeachyii149https://lawnchairanthropology.com/wp-content/uploads/2012/11/f7565-muffintops.jpgf7565-muffintopshttps://lawnchairanthropology.com/wp-content/uploads/2012/11/263f0-georgiapeachyii149.jpg263f0-georgiapeachyii149https://lawnchairanthropology.com/wp-content/uploads/2012/11/22781-muffintops.jpg22781-muffintops2013-08-04T13:37:37+00:00monthlyhttps://lawnchairanthropology.com/2012/08/09/these-new-fossils-are-intriguing-as-hell/https://lawnchairanthropology.com/wp-content/uploads/2012/08/untitled.jpgThese new fossils are intriguing as hellhttps://lawnchairanthropology.com/wp-content/uploads/2012/08/sediba-ileret.jpgThese new fossils are intriguing as hellhttps://lawnchairanthropology.com/wp-content/uploads/2012/08/sediba-ileret-superimposed.jpgThese new fossils are intriguing as hellhttps://lawnchairanthropology.com/wp-content/uploads/2012/08/95dbc-sediba-ileret.jpg95dbc-sediba-ilerethttps://lawnchairanthropology.com/wp-content/uploads/2012/08/b5383-sediba-ileret-superimposed.jpgb5383-sediba-ileret-superimposedhttps://lawnchairanthropology.com/wp-content/uploads/2012/08/db1c6-untitled.jpgdb1c6-untitledhttps://lawnchairanthropology.com/wp-content/uploads/2012/08/6a98b-sediba-ileret.jpg6a98b-sediba-ilerethttps://lawnchairanthropology.com/wp-content/uploads/2012/08/3beda-sediba-ileret-superimposed.jpg3beda-sediba-ileret-superimposedhttps://lawnchairanthropology.com/wp-content/uploads/2012/08/badee-untitled.jpgbadee-untitledhttps://lawnchairanthropology.com/wp-content/uploads/2012/08/3c119-sediba-ileret.jpg3c119-sediba-ileret2013-08-04T13:37:37+00:00monthlyhttps://lawnchairanthropology.com/2012/02/23/osteology-everywhere/https://lawnchairanthropology.com/wp-content/uploads/2012/02/treearm.jpgOsteology 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latehttps://lawnchairanthropology.com/wp-content/uploads/2011/11/1a0cf-turkeytrot2011bib.jpg1a0cf-turkeytrot2011bibhttps://lawnchairanthropology.com/wp-content/uploads/2011/11/e2681-turkeytrot2011bib.jpge2681-turkeytrot2011bibhttps://lawnchairanthropology.com/wp-content/uploads/2011/11/9c6c4-turkeytrot2011bib.jpg9c6c4-turkeytrot2011bib2013-08-04T13:37:36+00:00monthlyhttps://lawnchairanthropology.com/2011/11/26/updated-note-on-jaw-growth-in-australopithecus-robustus/https://lawnchairanthropology.com/wp-content/uploads/2011/11/p4h257estage.jpegUpdated note on jaw growth in Australopithecus robustushttps://lawnchairanthropology.com/wp-content/uploads/2011/11/p4b257estage.jpegUpdated note on jaw growth in Australopithecus 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dietshttps://lawnchairanthropology.com/wp-content/uploads/2011/10/6cf5d-absp4height.jpeg6cf5d-absp4heighthttps://lawnchairanthropology.com/wp-content/uploads/2011/10/1389e-sk438.jpg1389e-sk438https://lawnchairanthropology.com/wp-content/uploads/2011/10/79e43-sk438.jpg79e43-sk438https://lawnchairanthropology.com/wp-content/uploads/2011/10/244d5-absp4height.jpeg244d5-absp4heighthttps://lawnchairanthropology.com/wp-content/uploads/2011/10/cb000-sk438.jpgcb000-sk438https://lawnchairanthropology.com/wp-content/uploads/2011/10/b7c40-absp4height.jpegb7c40-absp4height2013-08-04T13:37:36+00:00monthlyhttps://lawnchairanthropology.com/2011/11/12/ardipithecus-beer/https://lawnchairanthropology.com/wp-content/uploads/2011/11/2011-11-12_14-50-57_947.jpgARDIPITHECUS BEER!!!https://lawnchairanthropology.com/wp-content/uploads/2011/11/white2526alfig3.jpgARDIPITHECUS 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