This is a reference book for ready answers to questions about the world of nature. It describes many of the most important species of animals and plants on land and in the sea and air, including details of how they feed, breed and adapt to their environment. Humans are included too, and there is an extensive section on how the human body works, and how its biology resembles that of other animals. There are also chapters on evolution and prehistoric animals. The easily-accessible design and index make information retrieval simple, and the mix of artwork, diagrams and photographs will prove irresistible to any child.