Natural History of Bipedalism

Facultative bipeds:

  • A. ramidus (5.8 mya)

  • A. anamensis (4.2 mya)

  • A. habilis (2.5 mya)

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Slide 82 of 109

Early facultative bipeds include A. ramidus (5.8 mya) A. anamensis (4.2 mya) and A. habilis (2.5 mya).

Definitions

Facultative biped
A creature that has the ability to walk on two legs, but is not required to do so. Such creatures often walked as quadrapeds or spent extensive time in trees.

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Last Modified June 21, 2006

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