Humans are in the same great ape family as the chimpanzees, gorillas and orangutans - with which they share a common ancestor. Since leaving their African homeland some 70,000 years ago, modern humans have come to dominate every continent on Earth except Antarctica. As a behaviourally, socially and culturally diverse species, humans have developed art and complex languages. As a species humans cannot survive without tools. They are the only known species to build fires, cook food and clothe themselves.

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