Can whales communicate across miles of vast ocean? Can elephants talk to one another with sounds we cannot hear? These are the kinds of questions that drive the work of acoustic biologists. Follow three creative scientistsChristopher W., Clark, Katy Payne, and Bill Evansas they research why and how animals communicate. Through remarkable photographs and stories about all sorts of animals, this book celebrates the challenges of lab work and fieldwork and the thrill of discovery.