Origins of Bipedalism

  • By Rima Chaddha
  • Posted 10.01.06
  • NOVA

Why do we walk on two feet? If you asked a roomful of anthropologists, you'd likely get a different answer from each person. In the course of human evolution, was there one key factor—changing landscapes, the need to keep cool, the advantage of attracting a mate? Here, sample leading hypotheses and vote for the one you prefer. Then hear paleoanthropologist Donald Johanson's take.

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Explore hypotheses for why we stand up, choose your favorite, then hear what paleoanthropologist Donald Johanson thinks.

Credits

Images

(illustrations)
© NOVA/WGBH Educational Foundation
(Donald Johanson)
Courtesy Donald Johanson

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