All types of dolphins are situated very high in their respective food chains, and they are generally considered apex predators. Indeed, the only regular predators dolphins and their calves have in the wild are sharks and, in some places, humans.
Dolphin remains are also occasionally found in the stomachs of orcas, but it is uncertain whether this is a result of scavenging by orcas or direct predation. Humans kill more dolphins than any animal native to the ocean does. A great portion of this occurs during the yearly Japanese dolphin slaughters at Taiji Cove. Meanwhile, dolphins themselves primarily eat small fish, such as mackerel, herring and cod, and squid. They also occasionally feed on crustaceans, such as shrimp.