This document contains information about dolphins organized into multiple sections, including prey, predators, habitat, physical appearance, facts, and references. It discusses that dolphins mainly eat fish, crab, and squid, and have sharks and killer whales as predators. Dolphins live in coastal waters, bays, and harbors. They are black, white, and grey with smooth skin and can grow up to 13 feet long. The document also provides some additional facts about dolphins and biographical information about the author.