Dolphins instinctively sleep like dolphins. Dolphins seem to swim around forever without sleep. Dolphins are mammals. They used to live on land, but later they went back to live in water and breathed with their lungs. If they continue to sleep in water, dolphins will die because they can't breathe. Do they really have to sleep? If they can sleep, do they sleep on land or in the sea? In fact, if we can observe dolphins carefully for a period of time, we will find that they sometimes close one eye when swimming. After investigating their brain waves, it is known that one side of their brain will be asleep. Even if they keep swimming, their left and right brains are taking turns to rest. If we can work while sleeping like dolphins, and rest our left and right brains alternately, we can use it wholeheartedly, and we are not afraid to miss the station when sleeping in the car. Dolphins are desperate to protect their young. If the female dolphin miscarries unfortunately, in order to let it breathe, she will try her best to push the young dolphin to the surface with her nose and mouth, repeat these actions repeatedly, and even stop foraging for two days. According to people in the aquarium, once the dolphin dies, the mother dolphin will try her best to revive it, but if it lasts too long, even the mother dolphin will die of fatigue. Therefore, the calf's body must be salvaged as soon as possible. Perhaps this can prevent the mother dolphin from being too sad and restore her strength. However, it is not easy for the staff to remove the dead dolphins. Mother dolphins will protect dolphins from ships and compete with staff for endurance. Does the mother dolphin know that the baby dolphin is dead? Or do you desperately want to push the dolphins to the surface because you feel sorry for them? Or is it just animal instinct? Perhaps dolphins do have some rationality that humans can't understand, and the details are still unclear. In ancient Greece, there was a story about dolphins rescuing drowning people: On one occasion, Aleon, a famous Greek lyric poet and musician, participated in a music competition organized by a wealthy Italian businessman and won a huge prize. He returned to Corinth, Greece by boat with this wealth, but on the way, the crew were jealous of him and wanted to kill him. Before he died, he asked to play another song. The wonderful music attracted a large group of dolphins. Aleon jumped into the sea, and the dolphin carried him on his back and swam to a safe place, so Aleon escaped. This story shows that the relationship between humans and dolphins was quite good in ancient times. So what is the situation between dolphins and dolphins? 1in June, 1994, when the researchers conducted an ecological survey of dolphins in the Pacific Ocean, they observed that a dolphin was hit by a harpoon and was in a coma. Not far away, another dolphin swam over and pushed the injured species to the surface. Its sound seemed to awaken the injured dolphin in a coma. Dolphins can identify friends and enemies. When investigating wild dolphins, researchers found that dolphins were usually reluctant to approach people at first, and seemed to be aware of the existence of strange objects. However, when they realize that humans have no intention, the vigilance of dolphins gradually declines, and they can even reach a distance. They will shake their heads and observe people. As long as one of them approaches people inadvertently, the other dolphins will swim slowly. Near Chaco Bay in southern Italy, more than ten Atlantic bottlenose dolphins swim to the beach every day. These dolphins don't seem to mind human harassment. They are used to the food and bait given to them by human hands. Therefore, even wild dolphins will live in harmony with human beings if given the right opportunities. But human beings have to get rid of the prejudice of "the spirit of everything" and stay in the world of dolphins. Find other ways to communicate with dolphins. In Wellington, the capital of New Zealand, there is a unique dolphin monument which reads "Jack the Genius Navigator". 187 1 year, the sailboat "burini" passed through Cork Strait, New Zealand, and was trapped in the "Death Canyon" for a whole day due to sudden weather changes. It was about to be destroyed, and the desperate captain crossed his chest feebly. Suddenly, his eyes lit up, and a big silver-gray dolphin jumped out of the stormy waves, looking back and forward from time to time, as if to say, "Please rest assured, my friend, I know how to go out and get rid of death." The captain seemed to see the lighthouse during the night flight and ordered to follow the dolphins without thinking. The great dolphins finally led burini people out of the land of terror. Since then, miracles have appeared. This silver-gray dolphin has been wandering around the strait, leading the passing ships year after year. Whenever a boat comes, it will always jump out of the water and wave its tail fin to welcome it. But it bypassed the reef and escaped the turbulence, which enabled the ship to escape. The crew affectionately called it "Jack". 19 12 years, Jack ended his 40-year career as a volunteer pilot and passed away quietly. The local people attached great importance to it. Divers found its body, covered it with the national flag, held a funeral for it, and later carved a bronze statue for it. Dolphins pay attention to division of labor in hunting. Dolphins move in groups in the process of hunting. Not only that, na-ture website reported that a recent study on the coast of Florida showed that each dolphin has its own clear division of labor in hunting. Cooperative hunting is found in many animal groups, such as chimpanzees. But each individual has his own specific job in the group, just like in a football team, each player has his own division of labor, which is rare in animal groups. American researchers observed two groups of dolphins, one consisting of three and the other consisting of two to six. The researchers identified each dolphin by marking their fins and observed their 60 hunting activities. It is found that in the process of collective hunting, one of the two groups of dolphins always plays the role of "driver", while the other group of dolphins plays the role of "obstacle". The "driver" dolphins will drive the small fish around them into the encirclement formed by the obstacle dolphins. This kind of individual division of labor in hunting has only been found in African lionesses in the past. A lioness waits in the center of the whole hunting scene, while other lionesses attack prey from all directions. Regarding the special division of labor among dolphins discovered this time, the researchers said that it is still uncertain whether this special hunting method exists in all dolphins or only in a certain area. Why do dolphins swim fast? A good figure is a prerequisite for swimming fast. But even the best figure, in nature, if you want to be a swimmer, there are still many details to be perfected. When animals swim in the water, they usually cause some small eddies. These small eddies affect the swimming speed of animals. Dolphins and sharks have different ways to solve this problem. On the dolphin's body, the slippery skin is not tight, but elastic. Dolphins shrink their skin when swimming, thus forming many small pits on their skin, in which water is stored. In this way, a "water cover" is formed around their bodies. When the dolphin swims fast, the "water cover" covers its body and moves with it. With the help of this water protective layer, dolphins swim with little friction and will not cause whirlpool. Dolphin rescue has a long history 1949. The wife of a lawyer in Florida, USA, disclosed her strange experience of being rescued from drowning at sea in Natural History magazine: when she was swimming at a beach, she suddenly fell into an underwater undercurrent, and rows of turbulent waves came at her. Just when she was about to go into a coma, a dolphin swam quickly, gave her a sharp push with its sharp beak, and then pushed her several times until she was pushed into shallow water. After waking up, the woman looked around to see who saved herself. However, there is no one on the beach, only a dolphin is playing in the water not far from the shore. In recent years, there are more and more similar reports, which shows that dolphins were never invented by people. Dolphins will not only push drowning people to the shore, but also come forward to rescue sharks when they eat people. 1959 in the summer, the passenger ship "Rio Arteiro" crashed in the Caribbean, and many passengers struggled in the rough sea. Unexpectedly, it never rains but it pours. A large group of sharks came around and everyone would be buried in the belly of the fish. At this critical juncture, groups of dolphins suddenly appeared like "heavenly soldiers and heavenly generals", pouncing on greedy sharks, driving away demons in the sea and turning passengers in distress into safety. Helping the weak is an instinct. Dolphins are always an animal that helps the poor. When people are in danger in water, they often get its help. Dolphins have also won the reputation of "lifeguards at sea", and many countries have promulgated laws and regulations to protect dolphins. So why do dolphins save people? Before people fully understood dolphins, they were always thought to be sent by God to protect human beings. Due to the progress of science, the understanding of dolphins is further deepened, and its mystery is gradually uncovered. Zoologists have found that dolphins are not limited to humans. They will rescue their sick companions. During the period of 1959, American zoologist De Herb Nale and others saw two dolphins swimming towards a dolphin injured by explosives, trying to rescue their companions. Dolphins will also help newborn dolphins, sometimes this move is blind. In an ocean park, a little dolphin died at birth, but it was pushed out of the water by its mother. In fact, almost all objects that do not actively move in the water will attract the attention and great enthusiasm of dolphins and become their "rescue" objects. Some people have done many experiments, and the results show that dolphins will do the same thing to anything floating in front of them, whether it is a dead turtle, an old air cushion, a lifebuoy or a wooden board. 1955, a dolphin rescued its old enemy, a young tiger shark, which was 1.5 meters long, and lifted it out of the water for eight consecutive days. As a result, this unlucky little shark finally lost his life. Accordingly, marine zoologists believe that the life-saving virtue of dolphins comes from their "caring nature" for children. It turns out that dolphins are mammals that breathe with their lungs. They can dive into the water when swimming, but they have to put their heads out of the sea to breathe every once in a while, otherwise they will suffocate. Therefore, for newborn dolphins, the most important thing is to reach the surface as soon as possible, but if there is an accident, the dolphin mother's care behavior will happen. She gently lifts the dolphin with her beak, or holds the pectoral fin of the dolphin with her teeth to make it surface until the dolphin can breathe on its own. This caring behavior is the instinctive behavior of dolphins and all whales. This instinct is formed in the process of long-term natural selection, which is very necessary for protecting the same kind and continuing the race. Because this behavior is independent of the object, once the dolphin meets the drowning person and mistakenly thinks it is a floating object, it will also have the same push-pull reaction, thus saving people. In other words, it is a coincidence that the inherent behavior of dolphins coincides with the exciting phenomenon of "saving people".