Starting with the beginning of life on Earth, this comprehensive book looks everything from early plants and the first amphibians to early reptiles and the first dinosaurs. The Age of Dinosaurs is explored in detail, and covers many exciting discoveries of new species, as well a comprehensive guide to better-known species such as T rex. The fascinating progression from dinosaurs to birds is clearly explained, which leads into the Age of Mammals. A useful introduction to children's dinosaur books for kids doing school projects or homework.