Science holds the answers to why a bird can fly through the sky and how a fish can swim so quickly through the water. The Science of Animal Movement explains how the shape of an animal's body works with its surroundings, letting it move in its own special way. A fish wiggles its tail to push through the water. Science explains how fish glide underwater. How Fish Swim explains how a fish's body lets it slice through the water, and the forces at work to keep them swimming along. Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject. Features include a table of contents, infographics, a glossary, additional resources, and an index. AGES: 7 to 9