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内容説明 This is the most comprehensive and up-to-date field guide to the mammals of North America. Written by two leading authorities， no other reference covers all resident species north of Mexico， mammals large and small. With full-color illustrations for every one of the 442 species， ?Mammals of North America? shows the user how to identify any mammal encountered， from mouse to moose， bat to baleen whale， Abert’s Squirrel to the Yuma Myotis. The core of the book consists of 108 color plates featuring exceptionally detailed mammal illustrations. Each species is depicted on these plates， with subspecies， geographic， and sexual variation portrayed whenever relevant. The artwork is supplemented by maps showing present range and by a short paragraph of text highlighting key identification characteristics and relevant aspects of the animal’s behavior and ecology. All the artwork， maps， and text for a species are on two facing pages， eliminating the need to flip through the book to learn about an animal. Mammal signs are often more easily found than the animals themselves， so illustrations of tracks and scat are also included. North America’s mammal fauna is one of the best documented in the world， and the authors have scoured the continent’s outstanding mammalogy literature to make this book as accurate and up-to-date as possible. Amateur naturalists will appreciate the complete coverage， detailed range maps， and outstanding artwork; professionals will welcome the inclusion of subspecies variation and the illustration of obscure traits crucial in distinguishing some pairs of similar species. This spectacular guide is the definitive one-volume resource on the mammals of a vast and tremendously varied continent. It includes 108 color plates with illustrations for all 442 of North America’s mammal species north of Mexico. Subspecies， geographic， and sexual variation are depicted when relevant. Artwork is supplemented on facing pages by range maps and by concise text， noting key identification traits and relevant aspects of behavior and ecology. Tracks and scat are illustrated as well. It is well-documented， accurate， and completely up-to-date.