With this book about dinosaurs, you'll become an expert and wow your friends and teachers with some awesome facts: Did you know that dinosaurs skin was more like bump bird skin than modern snake or crocodile scales? Or that the Tyrannosaurus Rex might have croaked like a frog instead of roaring? With great illustrations, cool trivia, and fun quizzes to test your knowledge, this guide will have you on your way to whiz-kid status in no time.