Did life first evolve on other planets? What's the advantage of having sex? Why do your parents look after you? And what good to a bird is half a wing? Dylan Evans addresses such questions and many others related to Charles Darwin's controversial, often challenging theory of evolution. Discussing recent findings in genetics, ecology, and animal behavior, as well as the analyses of leading science writers like Richard Dawkins and Steven Pinker, Evans presents a string of brilliant examples—engagingly illustrated by Howard Selina—and reveals how the evidence supporting evolutionary theory is stronger than ever.