What is a "dolphin"?

Dolphins are highly intelligent and social marine mammals known for their streamlined bodies, sleek appearance, and playful behavior. They belong to the family Delphinidae and are part of the cetacean group, which also includes whales and porpoises. Dolphins have a streamlined body with a dorsal fin on their back, a long snout, and sharp teeth used for hunting prey. They are excellent swimmers, known for their acrobatic leaps, tail slaps, and riding waves created by boats. Dolphins are highly social animals, often living in groups called pods, and communicate with each other using a series of clicks, whistles, and body movements. They are found in oceans all around the world and are known for their agility, intelligence, and playful behavior, which makes them popular subjects of marine research, conservation efforts, and public admiration.