Humans are evolving more quickly than at any time in history, researchers say. In the past 5,000 years, humans have evolved up to 100 times more quickly than any time since the split with the ancestors of modern chimpanzees 6m years ago, a team from the University of Wisconsin found. The study also suggests that human races in different parts of the world are becoming more genetically distinct, although this is likely to reverse in future as populations become more mixed. "The widespread assumption that human evolution has slowed down because it's easier to live and we've conquered nature is...