Sentences with phrase «upright walking essentially»
Our species is prone to back pain, for example, because our ancestors» imperfect transition to upright walking essentially took a spine similar to that of our nearest living relatives, knuckle - walking chimpanzees, and forced it vertical with piecemeal adaptations.
http://discovermagazine.com/ Not exact matches
Wrangham aimed to fill a gap in the story of how early hominins like Australopithecus — essentially, apes that walked upright — evolved into modern Homo sapiens.