Book excerpt: Ontario's diverse mammal population is beautifully portrayed in this comprehensive and easy-to-use field guide. Colour-coded header bars organize the mammals into seven major groups. Large, full-colour photographs are complemented by colour illustrations, detailed drawings of prints and tracks and range maps. All species are indexed in an illustrated quick reference guide. The text includes detailed descriptions of habitat, food, young, den, range and similar species, as well as fun facts about each animal's natural history and behaviour.