Whales are singers.
Outstanding "singers" in the water should push "humpback whales". 197 1 year, American biologists analyzed the sound of humpback whales found in the sea and found extremely special sound signals. It turns out that these "humpback whales" make a series of beautiful and pleasant sounds with different tones. These sounds lasted for 30 minutes, and then began to sing from the beginning. In terms of rhythm and lightness, they are comparable to the songs of birds. French biologists recorded the chorus of hundreds of humpback whales in Bermuda at night. There are thousands of sounds made by whales, including euphemistic trills, sharp squeaks, roars, buzzes and squeaks, much like a group of primary school students reviewing their lessons loudly. "Chorus" first compares the songs sung by a whale over the years, and also finds that all whales sing the same song that year and will change it the next year. When whales swim back to the starting point every year, they sing the songs they sang here last year, and then change to new songs. In addition, even though they are far apart, whales in Bermuda in the Atlantic Ocean and whales in Hawaii in the Pacific Ocean sing different songs at first glance. After careful analysis, the structure and changing rules of songs are the same. If all songs have six themes and exactly the same paragraphs. Whales in these two places will certainly not touch each other, but the tunes they sing are so similar that they have a set of equal rules inside.
Whales don't get lost when they swim in the sea
Whales never get lost when swimming in the sea because they have a special ability. There are more than 1 100 million tiny cells in their brains, which can send out ultrasonic waves and receive them to set the direction. They can also use this ultrasonic wave to inform other whales in time to help or escape together in times of crisis. This kind of ultrasonic wave can help them swim in the sea without getting lost, and can also call for help in time.
The various uses of whales are very beneficial to mankind. Now a large number of whales die, leading to the extinction of mankind. We should protect whales and let them continue to live and reproduce. Let people make more advanced instruments according to their interests. Whales are friends of human beings.
Whales are mammals that live in water. It has the same physiological characteristics as terrestrial mammals, such as breathing with lungs and viviparous. And has some special physiological structures that have evolved to adapt to the aquatic environment. Whales belong to the animal kingdom, Chordata, Mammalia and Cetacea.
There are two suborders under Cetacea, namely Blaleenwhales and Megaodon. The classification of these two groups is mainly determined by their different feeding methods. The main morphological feature of the suborder baleen whales is that they have no teeth, but there are great baleen whales, which can be used to screen plankton, so they are filter feeders. The main feature of Toothed Whale suborder is that it has teeth and is predatory, and the number and arrangement of teeth will be different from the direction of predation. There are about 79 species of 13 families in the world.
Although fish has the word fish, it is not a fish, but a mammal. It has many characteristics very different from fish. For example, the average fish swings its tail fin left and right to move forward, while the whale swings its tail fin up and down. They use flippers at the front end to keep balance and control the direction of force. Some whales have fins at the top of their backs to keep their bodies upright!
Whales are social animals. They usually live in groups in the sea, but when whales breathe, they need to swim to the surface. At this time, the whale breathes through the blowhole on its head, and when it exhales, the water in the air will condense and form the familiar fountain shape. Experts can even tell the species of whales from the height, width and angle of water spray! There are many kinds of whales, which can be roughly divided into toothed whales and baleen whales.
Whales have a very thick layer of fat under their skin, which is also commonly known as whale oil. It can keep whales warm and store energy for a rainy day. Because whales have many special structures in their bodies, they can breathe in the water for a long time and slow down their heartbeat. Therefore, when it sinks to the bottom of the sea, it will take a long time to surface again. In addition to the structure of storing oxygen, when a certain part of the body needs a lot of blood supply, the body will also have a special function of centralized supply.