Human evolution has been moving at breakneck speed in the past several thousand years, far from plodding along as some scientists had thought, researchers said on Monday. In fact, people today are genetically more different from people living 5,000 years ago than those humans were different from the Neanderthals who vanished 30,000 years ago, according to anthropologist John Hawks of the University of Wisconsin. The genetic changes have related to numerous different human characteristics, the researchers said. Many of the recent genetic changes reflect differences in the human diet brought on by agriculture, as well as resistance to epidemic diseases...