One of the most interesting and studied groups of animals, mammals are adapted to many ways of life - they can swim, walk, fly, live underwater or high up in forest trees. This collection of specially-commissioned photographs brings their fascinating world vividly to life. Starting with a comparison of the two most famous mammals, humans and chimpanzees, the book describes the evolution and classification of a large variety of mammals, going on to look in detail at their anatomy. It follows a mammal from birth, showing how it grows, and the stages of life. Feeding, suckling, grooming, and playing are also studied. Produced in association with the Natural History Museum, London, this book is a unique and compelling introduction to mammals' variety and complexity.