Ardi is the oldest known partial skeleton of a hominin and shows foot features that are transitioning from vertical climbing to bipedal walking. While Ardi has the primitive grasping big toe of the ...

A meticulous study of the ankle joint of this 4.4-million-year-old ancestor positions this species as a crucial link, bearing both primitive traits for climbing and early adaptations for upright ...

Before the genus Homo arose some 2 million years ago, eastern Africa was dominated by the Australopithecines - small brained, large-toothed bipeds that later earned the sobriquet "ape-men." But where ...