内容简介：
Turtles are the oldest reptiles that still exist on Earth today. They've been around for about 200 million years, since the days of the dinosaurs Some turtles are popular pets. Others do invaluable service for the environment-Many are endangered. All will fascinate students and get them excited about life science. Complete with close-up, color photography, maps, and special turtle facts, this series will be a welcome addition to any library. With powerful jaws that can cut through flesh like butter, these grumpy turtles have a temperament to match their snappish bite. They're content to prowl freshwater in search of food, but pull them onto land and they get really mad. Most snappers hibernate in winter, but some are so tough that they crawl around under the ice of lakes and streams. The common snapping turtle and the scary looking alligator snapper are both featured in this fun and factual book.