: Slightly larger than A. afarensis , averaging 420–500 cc.
: Primarily found in South Africa, including the famous Sterkfontein Caves . australopithecus africanus
: Latin Australo (southern), Greek pithecus (ape), and africanus (of Africa). : Slightly larger than A
: Habitual bipeds (walked on two legs) but retained long arms for climbing. : Slightly larger than A. afarensis
: Rounder cranium, less sloping face, and smaller teeth than earlier hominins.
: Had human-like ankle joints and pelvis for efficient ground walking. Evolutionary Significance