Australopithecus lived between 2.95 and 3.85 million years ago in East Africa, approximately where Tanzania, Kenya and Ethiopia exist today. It is believed that Australopithecus survived as a species for approximately 900,000 years before giving way to new hominids.
Australopithecus was among the first bipedal hominids, although its face had ape-like features, and its brain-case was about 1/3 the size of modern man's. The overall morphology of Australopithecus is typified by long, strong arms and short legs that are reminiscent of a chimpanzee. Australopithecus's diet consisted mainly of fruit, vegetables and tubers. Sexual dimorphism was exhibited by Australopithecus, as males were significantly larger than females. This sexual dimorphism is thought to be even greater than that of modern hominids.