"Take a plunge into the dephts and encounter speedy swimmers, deep divers, and bottom feeders. From stealthy sharks to curious catfish, find out fantastic fishy facts about how these underwater creatures hunt, hide, drive, and glide."-- Photographs and text explore the characteristics, habitats, and variety of fishes and other undersea life.

Explores the diversity of life in the sea, including predators and prey, the coral reef, and life in the twilight zone of the ocean, with information on products of the ocean, ocean explorers, and preservation of this natural resource.