Age range 6+ Young paleontologists will be enthralled by this book which tells the story of the discovery of Tyrannosaurus rex fossils and what these tell us. It explores the world of T-rex and its lifestyle. Readers will learn how the dinosaur's physical features aided survival in its prehistoric habitat and theories about its extinction. A timeline spotlights the period when the dinosaur lived, and a closing comparative graphic provides additional context on the animal's size.