The apatosaurus grew up to 75 feet long! These enormous dinosaurs stomped the earth 160 million years ago, but paleontologists still study them today! This high-interest text for young readers explores what the apatosaurus looked like, what it ate, where its fossils have been found, and much more. Leveled text and vibrant illustrations combine with maps, a pronunciation guide, a diet graphic, and a two-page profile to take readers on a journey into the world this giant sauropod!