A boy who collects fossils grows up to discover the first Tyrannosaurus rex dinosaur. Years later, a girl grows up to find the largest Tyrannosaurus rex ever. Look inside to discover the exciting world of paleontology! This book is about the discovery of the Tyrannosaurus Rex dinosaur, including information about the dinosaur's appearance, movement, and diet before it became extinct. This series introduces readers to the study of dinosaurs. Each book...

"With this book about dinosaurs, you'll become an expert and wow your friends and teachers with awesome prehistoric facts: Did you know that dinosaurs had large holes in their skulls to make their heads lighter? Or that the Tyrannosaurus Rex used its bad breath as a weapon? With great illustrations, cool trivia, and fun quizzes to test your knowledge, this junior genius guide will have you on your way to whiz-kid status in no time!"--