It is believed that man developed from the same general grouping of animals as monkeys and apes, however, the ancestors of the human race were a separate group of animals which walked erect on two feet.
It is thought that man, with his present build, was established by 25,000 B.C. The Neanderthal Man and Cro-Magnon Man, who might very well have led to the development of modern humans, had already died out by this time.