ANTH 1301 Lecture 20: Lecture 20
19 Oct 2015
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Thermoregulation model: less soal radiation, less sweating if you"re upright on two feet. Origin of bipedalism: anatomical basis: get larger brains, smaller canines, and start making tools. The transition from quadrepedalism, and maybe knuckle-walking, ape ancestors to bipedalism in early humns required a number of significant changes throughout the entire body. Central and east african sites: rift valley sites comes from deserted region of chad in central africa. Sahelanthropus tchadensis: in july 2002, a new hominin skull was announced that rocked the anthropological world. This skull found by french paleoanthropologist michel brunet, in an ancient lake bed in chad, is the earliest record of the hominin family. Four views of the sahelanthropus tchadensis skul: Due to the pressure of the sediments, the skull became deformed during the fossilization process. Biggest brow ridge ever. (bigger than apes) Michael brunet: french paleoanthropologist michel brunet with the discoverer of the sahelanthropus skull, ahounta.
