"[Presents information on] forty dinosaurs, marine reptiles, flying reptiles and prehistoric mammals. Each species is shown by its skeleton, revealing what it looked like inside and out. A full-color computer graphic illustration shows each animal in its habitat and introductory paragraphs describe when and where each dinosaur lived and other interesting facts. The annotated illustrations highlight physical features and their purpose. A human-to-dinosaur shadow comparison reveals the size and shape"--Provided by publisher.