Evolutionary biologist Michael Eisen has just written a terrific response to the idea that cultural characteristics of a group are the result of "natural selection." No, he says, there's no evidence that the ability to create a democratic government — or to foster social unrest — is genetic.
Former New York Times science writer Nicholas Wade has just published a book about race and genetics that has stirred up debates over scientific racism that go back over 250 years. Where did his ideas come from? Here are nine major works of scientific racism that are still influencing thinkers today.