Dolphins are marine mammals belonging to the family Delphinidae, which includes various species of dolphins and porpoises. Known for their intelligence, agility, and playful behavior, dolphins are often a favorite attraction in aquariums and marine parks. They communicate using a complex system of clicks, whistles, and body language to interact with each other. Dolphins are social animals that often live in groups called pods. They are also known for their acrobatic displays and can often be seen leaping out of water. Their streamlined bodies are specially adapted for life in the ocean.