The apes of ancient Africa split into 3 different groups 7 million years ago. These groups were the ancestors of modern gorillas, modern chimpanzees and modern humans. About 4.5 million years ago, our ancestors began standing in an upright posture, and 2 million years ago, human brain size relative to body increased close to the proportions of humans today. Human beings first moved out of Africa (probably) about a million years ago. We spread to all corners of the earth except the Australian and American continents. The reason for this is that Australia was …show more content…
This was the time of the Cro-Magnon Man. Cro-Magnon man was physically and behavorially similar to modern humans. Cro-Magnon Man made relatively complex stone tools with multiple pieces and specialised functions. Human beings around this time learned to make clothes, art, culture, boats, developed language. Our ancestors began to colonize the previously unreachable Australian continent as well as the American continent. In our ancestors' expansion efforts, their near human cousins were displaced and eventually were eliminated. These near human cousins were Neanderthals and also some indigenous Chinese and Indonesian species. It is interesting to read that some anthropologists have found physical similarities between modern Chinese and these ancient Chinese humans. This disputes the account that Cro-Magnon Man evolved and displaced all other near human species, as it did to the Neanderthals from Europe. Instead the evidence suggests that at least some of the cousins of Cro-Magnon Man co-evolved or interbred with him to bring about modern humans. The issue is disputed and evidence not wholly