T. rex, triceratops, pterosaurs, saber-toothed cats This colorful reference book is jam-packed with 1,000 fascinating facts about what these prehistoric creatures looked like, how they lived, and the evidence they left behind. From dinosaurs like Stegosaurus and Giganotosaurus that ruled the land to the mammoths and giant sloths that followed them, discover all you have ever wanted to know about dinosaurs, fossils,...