Not every creature that lives underwater is a fish, but 28,000 species of fish call the sea their home! In this volume, readers learn about many different kinds of fish as well as the special roles each of them play in their environments. They even learn what happens to fish when their environment is changed or damaged, such as by the growing crisis of global warming. Colorful photographs make readers feel as if they’re swimming alongside these creatures, as insightful questions and sidebars throughout allow readers to broaden their knowledge of the amazing world of fish.