ANTH 225 Chapter Notes - Chapter 10: Australopithecus Africanus, Olduvai Gorge, Homo Habilis
24 Oct 2017
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Document Summary
Tendency in all primates for erect body posture and some bipedalism. Maintain balance on the stance leg while the swing leg is off the ground. Maintaining a stable center of balance the act of human walking is the act of almost falling repeatedly the most dramatic changes are seen in the pelvis. 3 major groups pre-australopiths (6. 0+ - 4. 4 mya) earliest and most primitive hominins genus and species of hominid - sahelanthropus tchandensis. 6 mya separate genus seem to indicate bipedal locomotion having the best evidence to establish it as a hominin. 4. 4 mya female brain size is quite small. 4. 2 - 1 mya longest-enduring hominins yet documented. Laetoli footprints trail more than 75 feet long made by at least two - perhaps three - individuals bipedal moved in a slower fashion with a rather short stride. A contemporaneous and very different kind of hominin.
