MachineMachine /stream

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As scientists began to build a database of human DNA in the 1990s, it became possible to test these ideas with genes. In his talk, Paabo described how he and…

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We human beings persist in thinking of ourselves as a unique species, endowed with special insight into a universe that we can manipulate. In fact, this notion is based on…

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According to the late Harvard University biologist Ernst W. Mayr, the greatest evolutionary theorist since Charles Darwin, “species are groups of actually or potentially interbreeding natural populations which are reproductively…

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Have you ever thought about whether to have a child? If so, what factors entered into your decision? Was it whether having children would be good for you, your partner…

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Human evolution presents a puzzle. Nothing seems to explain the sudden takeoff of the last 45,000 years—the conversion of just another rare predatory ape into a planet dominator with rapidly…