It is a type of mammal widely distributed in the oceans around the world, belonging to the dolphin family under the cetacean order. Known for its friendly nature, high sociality, and complex communication skills. The body is streamlined with smooth skin, usually gray or white in color, with flexible upper and lower jaws and conical teeth, suitable for hunting fish and squid. They are highly intelligent animals with developed brains that can perform complex sonar positioning, making them highly efficient in underwater navigation and hunting. They also demonstrate problem-solving skills, creativity, and self-awareness, often performing and researching in marine parks and nature reserves.

It is a highly intelligent and social marine mammal belonging to the cetacean family of dolphins. It is known for its streamlined body, flexible movements, and friendly nature. There are a wide variety of species found in oceans and certain freshwater rivers around the world. Known for its fast swimming and amazing jumping ability, it can perform echolocation through sonar systems to detect the surrounding environment and search for food. The food mainly includes fish and squid, which use team collaboration strategies to capture prey. As a social animal, dolphins typically live in groups, where members work together to care for their young and exhibit complex social interactions and communication styles.

It is a small dolphin that lives in the North Pacific. Known for its elegant physique, fast swimming ability, and sociality. The body length is about 2 to 2.5 meters, and the weight can reach 150 kilograms. The body is streamlined, with unique skin color, usually dark gray or black, lighter abdomen, and white or light gray stripes on both sides of the body. It is a highly social animal that often appears in large groups of hundreds or even thousands of individuals. Feeding on fish, squid, and other marine organisms, using echolocation to detect the location of prey. Known for its ability to leap out of the water and perform high jumps and rolling.

It is a species of dolphin living in the North Atlantic, known for its streamlined body and unique markings. Large and robust in size, with a short beak and white patches on both sides below the dorsal fin, extending all the way to the yellow stripes on both sides of the caudal peduncle. This striking pattern is particularly noticeable when they surface to breathe. It is a social animal that can form a group of hundreds. They feed on fish and squid, and are known for their fast swimming and aerial movements such as riding waves, jumping into the air, and hitting water. Frequently associated with white beaked spotted dolphins, humpback whales, fin whales, and long footed pilot whales, showcasing their social and collaborative side.

It is a dolphin species widely distributed in warm waters around the world. Named after its distinctive feature - a short and thick snout (commonly known as a "bottle nose"). Large in size, adult individuals can reach a length of 2.5 to 4 meters and a weight of 350 to 635 kilograms. The body is streamlined, the skin is smooth, and the color is usually dark gray or blue gray, with a lighter abdomen. It is a highly socialized animal that usually moves in groups, with group sizes ranging from a few to several hundred. They feed on fish, squid, and other marine organisms, and use sonar to locate their prey during hunting. Very intelligent, with high learning and problem-solving abilities.

It is a medium-sized dolphin known for its unique hourglass shaped gray markings. Mainly distributed in tropical and subtropical waters, especially in the warm waters of the Pacific, Atlantic, and Indian Oceans. Usually active in groups, with group sizes ranging from tens to hundreds of individuals. Known for its agility and fast swimming ability, it can swim at speeds of up to 35 kilometers per hour. The staple food includes various fish and squid, which use sonar to locate prey and then hunt at astonishing speeds. It is also known for its social behavior. Will engage in complex social interactions, including jumping, rolling, and other forms of water acrobatics.

It is a streamlined and intellectually advanced marine mammal. The middle of the body is thick and round, the back is gray or dark gray, and the color of the abdomen is relatively light. I enjoy living in groups and often engage in activities near the sea. I have strong swimming abilities and can swim at a speed of 100 kilometers per hour. Mild temperament, but sometimes shows aggression, especially during mating season. The food mainly includes group dwelling fish such as hairtail and mackerel. Each dolphin has unique vocal characteristics through physical movement and special sounds for communication. Widely distributed in temperate and tropical oceans around the world, it is also found in coastal provinces of China.

It is a highly intelligent and social marine mammal belonging to the family of dolphins in the order of whales. Known for its friendly nature and spectacular behavior of leaping out of the water. The body is streamlined, the skin is smooth, usually gray or blue, and some species also have spots or stripes. Equipped with a highly developed sonar system, it can navigate and search for food in water. It is a social animal that often swims in groups and sometimes interacts with humans. The food mainly includes fish and squid. Dolphins play an important role in marine ecosystems, but also face threats such as ocean pollution, overfishing, and habitat destruction.