Coral reefs have existed since the days of the dinosaurs, and today the Great Barrier Reef of Australia is so large that astronauts can actually see it from space. But what is life like in a coral reef? What fish live there? What do they eat, and how does coral survive? Why is coral more colorful at nighttime? Gail Gibbons is known for her ability to bring nonfiction subjects to life for young readers with easy-to-understand text and clear, detailed illustrations. In this brilliantly colorful book, young readers will relish the chance to explore the unique ecosystem of the coral reef and discover the many creatures that call it home.