Iguanodon got its name because its discoverer thought its teeth looked like the teeth of an iguana?but much bigger! This plant-eating reptile was just the second dinosaur ever discovered. Scientists have learned a lot about Iguanodon since then. Besides presenting many fascinating facts about the big creature, this volume provides valuable information about Earth at the time of the dinosaurs as well as how paleontologists figure out how dinosaurs looked and lived. Readers will gain a better understanding of the prehistoric world through the many fossil photographs, Iguanodon images, and graphic elements?including a final fun activity.