This in-depth, comprehensive guide to the animal kingdom provides all the information students need for research and reports. Each volume features clear classification charts--one for each animal profiled, as well as a large chart at the back of each book that classifies the entire animal family. The text provides essential information on each animal, including life cycle, physical features, food, survival, and habitat. Fact boxes listing key characteristics are ideal quick-reference tools. In addition, each book contains a wealth of full-color photographs, easy-to-understand diagrams, and an extensive glossary. This is an essential resource that students will turn to again and again.