Dr. Shoun, a famous American psychologist, once did an interesting experiment, playing the violin in the zoo and observing the reactions of various animals. The results show that the python listens with its head held high and swings from side to side with the rhythm of the music; Scorpions dance and change their excitement with the pitch. In addition, the bear listened upright, the wolf howled in fear, the elephant gasped as if to express anger, and the monkey kept nodding and making various gestures. This shows that the appeal of music is both universal and extremely primitive, so that animals can still enjoy music and be infected by it, although they do not have human aesthetic ability and appreciation level. Therefore, many experts believe that music can really affect the physiological and behavioral changes of animals, and it is not completely useless for casting pearls before swine. In fact, some studies show that listening to music can increase the milk production of cows, while listening to music can lay more eggs for hens. In India, there is a man who plays snakes as a profession. As soon as they play the flute, the cobra will dance and twist, and the snake player can make money from it. When residents want to drive away the poisonous snakes near their home, they will invite snake charmers to play the flute, so that the poisonous snakes will automatically climb out of the hole with the flute.