American crocodiles are larger but fewer in number than their cousins the alligators. While doing research in the Everglades—which involved canoeing, hiking, and snorkeling in crocodile country—Jim Arnosky and his wife Deanna set out to find out all they could about these shy, prehistoric-looking creatures while also tallying their count. Beginning with the history of these great beasts, who lived alongside dinosaurs and until recently were endangered animals in the United States, Arnosky also identifies the characteristics of crocodiles and how they differ from alligators. The majority of the book features safari journal entries noting the time, weather, and tide for each crocodile spotting. Lush illustrations capture the nature of the Everglades, and the beauty and ferocity of these ancient amphibians. A DVD included with the book features the author drawing and singing about crocodiles. (Ages 5–9)