The Evolutionary Leap to Bipedalism Took Place in Trees

By observing chimpanzees in Tanzania, researchers concluded that humans evolved to being bipedal while they still lived in trees. Source: Left; Mari_art / Adobe Stock; Right; Sam D'Cruz / Adobe Stock

Conventional wisdom says that ancient humans made the transition from walking on four legs to walking on two because they needed to travel more efficiently across open savanna land in Africa. 

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