Today mammals include over 5,500 living species and occupy every major environment. The Great Lakes region is home to 83 species, ranging from tiny shrews that weigh less than a tenth of an ounce to immense moose, known to exceed a half ton. Now in its 60th year in print, Mammals of the Great Lakes Region is the must-have reference guide for teachers, students, naturalists, and professional biologists interested in these animals. In this all new 3rd edition, a thorough introduction examines the major characteristics of mammals and the Great Lakes ecosystem, including the physical factors that affect the distribution and abundance of species in the area. Profiles of species include detailed information on physical characteristics, behavior, and natural history alongside all new color photographs and distribution maps showing geographic range in the Great Lakes region and in North America. A section on the tracks of common mammals has also been added.