What Separates Us From Chimps?

The nine-year-old chimpanzee 'Pia' nurses her newly-born baby 'Amelie' in their enclosure at the Serengeti Park in Hodenhagen near the northern German city of Hanover on June 13, 2008. 'Amelie' was born on May 25 and is the first chimpanzee to be born here in six years. AFP PHOTO DDP / STEFAN SIMONSEN GERMANY OUT (Photo credit should read STEFAN SIMONSEN/AFP/Getty Images) Photo: STEFAN SIMONSEN/AFP/Getty Images/Getty

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]