Abstract

Bipedalism and climate. In the study of human evolution, bipedalism is considered to be a distinctive trait of the family Hominidae. The oldest evidence of bipedalism is found in the two preserved femurs of Orrorin tugenensis, from the Upper Miocene from Kenya. Claims of bipedalism in Ardipithecus and Sahelanthropus have to be re-evaluated because of insufficient evidence. It has been widely accepted that hominids (and thus bipedalism) emerged in a savannah environment. However, it is now clear that the earliest bipeds are associated with forested environments as proved by the flora and the fauna of the Lukeino Formation (Kenya, 6 Ma). To cite this article: B. Senut, C. R. Palevol 5 (2006) .

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