Animal Engineers introduces readers to some of the animal kingdom's most amazing structures. Each book provides an in-depth look at how animals build and use the structure, as well as its effect on the surrounding environment. Explains the process and materials that chimpanzees use to build nests. This book's colourful photos, clear text, and "A Closer Look" feature highlight the engineering that makes this structure such a marvel and helps chimpanzees survive in the wild. AGES: 7 to 9 SELLING POINTS: . Table of contents . Glossary . Index . Additional resource lists . Quiz questions . "A Closer Look" special feature