The dominant theory of human evolution is that the development of the human species took place in Africa, following a split in lineage between the hominin tribe and its closest relatives, the chimpanzees and bonobos.[1] Recent molecular and fossil estimates place this split around 8–10 million years ago, but the dates and location are uncertain and there is relatively little fossil evidence from that time.[2] Early in their history, hominins migrated from the forests to the open savanna terrain of East Africa, where they evolved to walk upright on two legs.[3] From there, they migrated across the continent including into Southern Africa.[4] Archaeological evidence such as the Taung Child, an Australopithecus skull found in South Africa in 1924, indicate that hominins lived in Southern Africa from at least 3 million years ago.[5]