This is “Mrs. Ples”, the most famous example of Australopithecus africanus from Sterkfontein cave in South Africa. Researchers studying the diet of human ancestors who lived two million years ago in southern Africa have unexpectedly come across a crucial clue to their social structure. By analyzing fossil teeth of australopithecines in Africa, scientists found that the males stayed close to home, while the females dispersed after puberty, just like chimpanzees!