The bottlenose dolphin's diet consists primarily of fish and marine invertebrates. Other dolphins eat a variety of foods depending on their species, available food and the methods they have learned for hunting. More »

Sharks, killer whales and humans are the primary eaters of dolphins. Dolphins are near the top of the food chain and employ many defensive strategies, so they are not often eaten by predators. More »

www.reference.com Pets & Animals Mammals Marine Mammals

Dolphins are active, opportunistic predators that feed on many different kinds of fishes, squids and crustaceans. Their diet varies according to what is geographically available. Fishes and squid are staples for offshore... More »

Dolphins consume anywhere from 4 to 9 percent of their body weight each day, which translates to a daily total of just over 20 pounds and up to 50 pounds daily for an adult bottlenose dolphin weighing 550 pounds. As with... More »

www.reference.com Pets & Animals Mammals Marine Mammals

Most otters eat crayfish, crabs, fish, frogs and other aquatic invertebrates. The diet of otters varies, however, depends on the species, location of residence and availability of food sources. Small otters generally con... More »

www.reference.com Pets & Animals Mammals Marine Mammals

Bottlenose dolphins eat a variety of fish, squid and crustaceans such as crabs and shrimp. The type of food available to the dolphin is dependent upon its location, so some dolphins will eat more crustaceans, while other... More »

www.reference.com Pets & Animals Mammals Marine Mammals

Pollution affects dolphins by contaminating food sources and causing dead zones that are void of fish and other important staples in the diet of dolphins, as explained by the Seattle Post-Intelligencer. Contamination can... More »