Piranhas are known as fierce aquatic predators, but there is much more to discover about these misunderstood freshwater fish. This high-school nonfiction title gives readers an in-depth look at the schooling behavior, omnivorous diet, remarkable anatomy, and tropical habitats of these colorful, razor-toothed creatures. Also featured are ecosystem preservation efforts and the piranha's challenging relationship with humans throughout history, including media misconceptions and ecological importance. Captivating photos and intriguing facts are accompanied by detailed sidebars, a comprehensive glossary, selected bibliography, relevant websites, and an index.