Lila Prap's humorous non-fiction picture book about Dinosaurs is now available in paperback! Chickens descended from dinosaurs? The chickens in this book find that hard to believe. But as they learn more about their ancestors, they grow convinced. “From now on my name is Chickesaurus Rex!” declares one chick proudly. This trifecta of bold illustrations, fun facts, and a touch of irreverence will make this book a hit with kids.