Dolphins don't dive as long as other whales. Swim fast and acrobatic, a unique swimming style of dolphin family. Dolphin swimming is a unique way for dolphins to swim. The whole body jumps out of the water at a small angle and then enters the water at a small angle. This is one of the ways that dolphins are different from other cetaceans (porpoises and other cetaceans usually don't swim like this). Dolphins swim very fast, usually the fastest speed is about 30-40km/h, and the speed of individual dolphins can exceed 55km/h, which can last for a long time. It is the champion of long-distance swimming in the ocean. Some dolphins are highly socialized species, living in large groups (sometimes more than 100000 individuals) and showing many interesting collective behaviors.
There are many ways of cooperation among team members. One example is that dolphins in groups sometimes attack sharks and kill them by impact. Members will also cooperate to help the injured or sick. Dolphins often follow ships through the wind and waves, sometimes jumping into the air like acrobatics. The scene is spectacular, mainly feeding on fish and squid, among which killer whales also prey on mammals (such as whales and pinnipeds), birds and large fish. Like other toothed whales, dolphins rely on echolocation to prey, and can even stun their prey with loud noise.
Some children are unwilling to talk and communicate with the outside world. They live in their own spiritual world all day, and even don't say a word at a few years old. This disease is called childhood autism. The medicine for this disease is not very effective, but it has been found that dolphins can help treat this disease. Dolphins are regarded as doctors to treat children's autism because of their developed intelligence, smart mind and fast learning speed. It can not only perform programs, but also act as a ship guide and lifeguard.