• Durable, inexpensive, fun to use nature identification guide • Great for taking on outdoor adventures • Created by a high-school science teacher This field guide for North American land mammals is a fun, easy way to identify critters on your next camping trip. Bring it along in the car or slip it into your pack. This tough, lightweight laminated card can take abuse and is waterproof. Mac's Field Guides are the perfect wildlife identification tool for the amateur naturalist, covering a wide variety of subjects and regions in North America.