Grzimek's Encyclopedia of Mammals
Provides comprehensive coverage of "the study of animals in their natural environments with the latest findings from the fields of evolution, biochemistry, and genetics, together with phylogeny, energy consumption, optimum food intake, the mechanics of locomotion, and other factors in performance."--Book News, Inc. Includes wonderful illustrations, comparative charts and tables.
Available in print: QL701 .G7913 1990