A new analysis offossilized limb bones suggests that Australopithecus walked upright without giving up the trees. The ...
On the right is a depiction of an early Homo human ancestor characterized by relatively greater bone strength of the femur in the thigh compared to the humerus in the arm. To the left is a depiction ...
Bipedalism, or walking on two legs, is one of the key features that distinguishes humans from other apes. But when and why our ancestors transitioned from a life often spent in trees to a life spent ...