A human being, also human or man is a member of a species of bipedal primates in the family Hominidae (taxonomically —Latin: "wise human" or "knowing human"). DNA evidence indicates that modern humans originated in east Africa about 200,000 years ago. Humans have a highly developed brain, capable of abstract reasoning, language, introspection and problem solving. This mental capability, combined with an erect body carriage that frees the forelimbs (arms) for manipulating objects, has allowed humans to make far greater use of tools than any other species. Humans are distributed worldwide, with significant populations inhabiting most land areas of Earth, as well as large numbers of humans at any particular moment flying in vehicles through the atmosphere, many others traveling over and beneath the oceans, and even a few individuals living in low Earth orbit. The human population on Earth is

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