Becoming Human: The Evolution of Walking Upright | Science | Smithsonian

Bipedalism has very ancient roots in the human family tree.  Some traits of bipedalism show up in hominid ancestors from as much as 7 million years ago. But how and why did walking upright on two legs become such a human trait? This article from Erin Wayman for the does a great job of breaking down the most recent hypotheses and the history of the study of human bipedalism.

Smithsonian has an online article series called “Becoming Human.” It’s a great overview of how the traits we consider “human” came to be.

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