Only after we had been living for a long time on the continent did we finally decide to begin to move around the Earth. It was not soon after walking on land that early humans left Africa, however. This would have required early hominids to come down from the trees and to walk upright, or become “bipedal,” in order to find enough food to survive. Some scientists think that hominids who lived in the trees of Africa could have been pushed to leave the trees as the climate dried up, and shrank the forests while expanding the African savannah. We are primates, and we share a common ancestor with chimpanzees and gorillas this ancestor was alive between 8 and 6 million years ago. ![]() Many scientists now believe there were somewhere between 15 and 20 different species of early humans alive on the planet.ĭid we evolve in seclusion? Hardly. There are fossils of early humans showing we lived between 6 and 2 million years ago that have been found on this continent, and researchers think that hominids, or human-like beings, diverged from other primates during this time in eastern and southern Africa. The very first humans are thought to have evolved in Africa. ![]() ![]() Science shows that human evolution goes back for millions of years on Earth. Where do we come from? Many different groups of people have their own theories about the origins of humans.
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