This evolutionary and cognitive theory of humor seeks to reveal the complex science behind why we crack up. "A sophisticated analysis . . . written with clarity, good cheer, and, of course, wit." ―Steven Pinker, author of How The Mind Works Some things are funny--jokes, puns, sitcoms, Charlie Chaplin, The Far Side, Malvolio with his yellow garters crossed--but why? Why does humor exist in the first...