Consider the lynx, a medium-sized cat of boreal regions of North America, "a solitary animal, associated with the opposite sex only during mating." Consider the Oldfield mouse, Peromyscus polionotus, once abundant in abandoned fields and beaches from South Carolina to northern Florida. These are but two of the 390 species covered in this densely informative, well-illustrated guidebook to the mammals of North America, with photographs keyed to textual descriptions that cover a given animal's physical features, range and habitat, breeding characteristics, and behavior (and, helpfully, that list other animals with which it might be confused). This easy-to-use handbook makes a superb addition to any naturalist's library.