The family Phocoenidae, commonly known as porpoises, includes small marine mammals that are closely related to dolphins and whales. These creatures are known for their rounded bodies, flat snouts, and small dorsal fins. Porpoises are typically found in shallow coastal waters and are known for their playful behavior, often seen swimming in groups. Porpoises primarily feed on fish and squid, using echolocation to locate their prey. Unlike dolphins, porpoises have a more robust body and a less pronounced beak. They are generally shy and less acrobatic than their dolphin relatives, making them fascinating yet elusive creatures of the ocean.