What Separates Us From Chimps?

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Photo: Stefan Simonsen/AFP/Getty Images

As it turns out, it's not always the DNA we have, but the DNA that we've lost along the way. David Kingsley, a Stanford University researcher, tells New Scientist that losing sequences of DNA, which act like switches to turn things on or off, caused our ancestors to lose "certain features, like facial whiskers, and added new ones, including brain cells in crucial locations." For some people. [New Scientist]