Despite those differences, “upright walking preceded the great ape/human split and likely started in Europe,” Böhme says. Measurements of three Danuvius limb bones, two of which come from the ...

By contrast, when a chimpanzee tries to walk upright, its feet stay wide apart ... Like a human knee, it could "lock," allowing its owner to stand straight-legged. The knees of chimps and other ...

might explain the evolution of the human as the naked ape. It obviated the need for complete body hair. Hair not only keeps heat in, it keeps it out. By standing upright, hominids had less need of ...