In nature, there are many animals that use sound as a communication tool. Many birds have sweet and changeable voices. They are excellent singers. It is said that there are two or three thousand kinds of bird languages in the world, which are comparable to those of human languages. Some zoologists have studied various languages of birds.
The sound language of animals is ever-changing and has different meanings. The long-tailed rat will make a series of sounds when it finds its strong enemies on the ground, such as foxes and wolves. If the threat comes from the air, its voice will be monotonous and lengthy; Once the Snitch has landed on the ground, it will give an alarm every eight seconds. The hen can call the police with seven different sounds. Her companions, as one pleases, know who the attackers are, where they come from and how far they are from here.
yet I feel the harmonious heart-beat of the Sacred Unicorn (1) is a poem in Untitled by Li Shangyin in the Tang Dynasty. It means that two hearts are connected and know each other. Linxi, rhinoceros horn. It is said that rhinoceros is a supernatural animal, and there are white lines in its horns, which go straight to both ends. This means that when an animal sends a signal, other animals also understand what it means. . The alarm sounds of some animals are not only familiar to members of the family, but also to other animals. For example, when the hunter walked into the forest, the magpies were condescending and twittering to give an alarm, and wild deer, wild boar and other birds and animals immediately understood that it was dangerous here. So they all fled. At present, taxonomists are studying the sound signals of animals as an indicator of animal classification; Ecologists are exploring how to reveal the mystery of animal behavior through sound signals. What's more striking is to use the animal's voice language to command animals to act according to human's orders, and not to cross the "Lei Chi" which is a water name flowing from Huangmei, Hubei Province to Susong, Anhui Province. Because the ancients said "one step without crossing the line", later generations used "crossing the line" to indicate the insurmountable boundary. Half a step.
katydids [zhōng] A pest, with a green or brown body, is good at jumping and eats crops. The male's front wings have a sound generator, and the fluttering wings can make sounds. Animals such as crickets, locusts and mice communicate with each other by ultrasonic waves. There are three kinds of songs: "single man" sings mostly "marriage proposal song", and other "single men" will sing in unison when they hear it. The female owl heard the music and went to the meeting, and chose the one who sang loudly. When the two males met, they sang "battle songs", set up their positions face to face, and frequently shook their tentacles, which was very explosive. When there is danger around him, he plays "alarm song" loudly, and the listener is "silent" and runs away.