Travel back to the time of the dinosaurs—hefty Brachiosaurus, armor-plated Ankylosaurus, and more are waiting inside the pages of this interactive book! While learning amazing facts about some of the giants that once roamed the earth, readers 9 to 12 can follow simple instructions to assemble the five sturdy models of a T. rex, Triceratops, Argentinosaurus, Parasaurolophus, and Quetzalcoatlus.