Created in association with the Smithsonian Institution, Knowledge Encyclopedia: Animal! is a groundbreaking visual approach to the animal kingdom and is packed with facts about mammals, birds, fish, amphibians, reptiles, and more! Follow the timeline of evolution and extinction of animals throughout history and see how different animals have adapted to their environments to survive. Covering all the major animal groups and how they fit into the tree of life, photorealistic computer-generated images, infographics, and cutaways that reveal the inner workings of animals make sure that everything is easy to understand at a glance. Each page has simple annotations and data boxes for readers, plus there is a 32-page reference section that helps readers with any unfamiliar animal terms. See different animal habitats and ecosystems that contribute to the world's biodiversity, learn about the different senses and life cycles of animals, and find out how animals communicate with each other.