Humanity’s upright gait may have roots in trees | Science News

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Humanity’s upright gait may have roots in trees

A new analysis of apes’ wrist bones suggests that a two-legged stride evolved from tree climbing, not ground-based knuckle-walking

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3:37pm, August 10, 2009

Chimpanzees don’t knuckle under like gorillas, and that may explain how people ended up walking on two legs, a new study suggests.

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