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Dolphins are intelligent and social marine mammals known for their playful behavior, agility, and distinct vocalizations. They belong to the family Delphinidae and are found worldwide in seas and oceans, ranging from shallow coastal areas to deep offshore waters. Dolphins vary in size, with some species reaching up to 30 feet in length. They have a streamlined body, a prominent dorsal fin, and a distinctive 'melon' on their forehead used for echolocation, a form of sonar that helps them navigate and locate prey. Dolphins primarily feed on fish and squid. Known for their friendly disposition, they are often seen swimming alongside boats and performing acrobatic jumps and flips. Dolphins communicate with each other through a complex system of clicks, whistles, and body movements. They form close-knit social groups called pods and exhibit cooperative behavior, such as hunting together in coordinated attacks on schools of fish. Dolphins are also known for their intelligence, curiosity, and problem-solving abilities. Some species of dolphins have been shown to use tools, such as sponges, to protect their snouts while foraging on the ocean floor. Despite their popularity as a symbol of marine life, many dolphin populations face threats from habitat loss, pollution, and human activities, including hunting and bycatch in fishing nets. Conservation efforts are underway to protect these remarkable creatures and ensure their continued survival in the wild.