Fish make our world a better place. But sometimes people do things that make it hard for them to live and grow. In this simple introduction to fish and ecology, Melissa Stewart shares with young readers the behavior and beauty of fish and describes specific ways people can help protect them and their natural habitats. Children learn basic facts about fish, including where they live, what they eat, and how they benefit plants and other animals. Sidebars throughout the book contain information on human action that has harmed fish and on the many ways people can protect threatened fish populations, such as by preserving reefs and other marine habitats and by restricting overfishing in sensitive areas. Pointers on how youngsters can help fish in their own community are also included.