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Anthropology (165)
CAS AN 102 (111)
Lecture

Homo.pdf

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Department
Anthropology
Course
CAS AN 102
Professor
Matt Cartmill
Semester
Spring

Description
Homo Friday, March 22, 2013 10:39 AM Homo habilis: larger canines Smaller cheek teeth Delicate jaw Simple cusped teeth Not that strikingly different but: Larger brain case Forward formina magna Projecting nose Large brow ridge Much smaller teeth Australopithecuslimb proportions Homo rudolfensis at the same time (1.8 MYA) Big brain but ape teeth Homo ergaster/erectus Big brain Most humanlike so far Modern human limb proportions Acheulean axe: stone tools Increase in: body size Brain size More effective to get more out of thehabitat Dietary changes Evidence for organized hunting, food processing Improved techniques for gathering and preparing food Reduced teeth and chewing muscles Olorgesaile sites (about a million years ago) Skull changes Projecting noses Cut marks on bones on site Food processing site Thicker brain casing (weapon use?) Migration out of africa Asia europe Stone tools (always, part of lifestyle) For running: Longer legs Narrower torso and pelvis Head stabilization Shorter toes More sweat glands? Hair loss approx. 3MYA?
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