La Vida Secreta de Los Dinosaurios Y El Mundo Prehistórico (Prehistoric Worlds) (Spanish)(The Magic and Mystery of the Natural World) Ages 7 9. This picture book combines all the information about the prehistoric world with stunning photographs and illustrations for easier and more fun learning. Children will get to know their favourite dinosaurs in depth, from the terrifying Tyrannosaurus to the spiny Stegosaurus or the enormous Diplodocus, and will learn all about prehistoric animals and plant fossils. 80 pages hc