While we know a lot about how teeth and facial structures...

While we know a lot about how teeth and facial structures changed over time, it was thought that once our ancestors became bipedal, there were few, if any, changes in the ankle associated with walking on two legs. Now we know there were slightly different ways to be bipedal.

Gary Schwartz Quote About Ancestors, Ancestry, Ankle, Associated, Became: While We Know A Lot...

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