In what many scientists say is a revolution in biology, a giant new project is rewriting our understanding not only of what causes diseases or what makes our eyes a certain color, but what makes us human. And it turns out scientists have been looking in the wrong place for a very long time. The bounty of new discoveries, released in a batch of 40 research papers on Wednesday, shows the stretches of DNA that we call genes are only a very small piece of what makes the body work. Much more important...