The history of human evolution is a long and complex process, spanning millions of years. This process began with small, tree-dwelling apes, and ended with modern, highly intelligent and civilized humans.Scientists have discovered that the first apes appeared in Africa about 7 million years ago. These gibbons are small, hairy, and move on all fours. However, they have begun to develop some characteristics that distinguish them from other apes, such as larger brains and the ability to stand upright.About 2.5 million years ago, a new species of ape appeared, called Australopithecus. Australopithecus had more human-like features than other apes, such as a larger brain, the ability to stand upright, and walk on two legs. Australopithecus was also the first ape to use tools.About 1.5 million years ago, a new species of ape appeared, called Homo habilis.  ...