"In this fascinating introduction to skeletal systems, images show how different types of skeletons work. Full-color photographs of people and other animals are overlaid with illustrations of bones to show these supporting frameworks. Kids will learn that bones come in all shapes and sizes to serve a myriad of functions and be able to compare human skeletons to those of other vertebrates. The book also covers related topics such as tendons and joints, and includes tips for how to keep bones strong. An index and a glossary of scientific terms are included." -- Barnes & Noble description.