We all love dinosaurs. Now, lift the flaps to find out more about them-their skin, bones, teeth, and other legendary characteristics. Examine some of the most popular species, including the T-rex and Triceratops, along with the Parasaurolophus, whose crest had acoustic powers, and the Maiasaura, the "good mother." Every dinosaur appears next to a picture of a human, in order to reveal its relative size.