Behaviour of Homo erectus
The oldest Acheulean stone tools, stone axes and other bifacial cutting tools, 1.95 million years old, were found at the Garba site in Ethiopia.
The finds, which attest to the deliberate and controlled use of fire from the Wonderwerk cave in the very south of Africa, date back to the time of Homo erectus, approximately one million years ago. Traces of the use of fire have also been found at sites of older dates in eastern and southern Africa, however, they are still not fully accepted as evidence of controlled and intentionally lit fire.
One of the significant changes in the members' diet is the development of numerous adaptations for cooperative hunting of large game, as well as the use of meat as an important source of their diet. Remains of increasingly sophisticated stone tools can be found at sites of this era all over Africa, but also in Eurasia. So far, the oldest stone spear points and blades, approximately 500,000 years old, were found at the Kathu Pan 1 site in southern Africa.