Australopithecus africanus existed between 3.3 and 2.1 million years ago in parts of southern Africa. This species is similar to Australopithecus afarensis in that it has both ape-like and human-like characteristics, lived both in trees and on the ground, had a mostly vegetarian diet, and was able to walk bipedally and stand on two legs. However, unlike Au. afarensis, Au. africanus had a more rounded cranium, larger braincase, and smaller teeth. This species was first discovered in 1924 when Raymond Dart uncovered the famous "Taung Child" fossil; this was the first fossil of an early human ever found in Africa. Au. africanus is currently the oldest known early human from southern Africa, so its origins remain a mystery.