This fast-paced, lavishly illustrated book traces the evolution of animal life through six time periods: early life, Triassic life, Jurassic life, Cretaceous life, ancient mammals, the Ice Age. As they travel through time, young readers will discover a host of astonishing creatures, including: bird-dinosaurs, like Deinonychus; terrifying flying lizards, like Pterodactylus; Gigantopithecus, a 3-metre-tall ape.