In India, there is a very dangerous performance – the snake dance. The performers played an instrument against a large jar, and a snake with a high venom slowly crawled out of the jar. The snake would shake its body to the music as if it were dancing.
So, can snakes really understand music?
The answer is: no
In fact, the snake's hearing is very insensitive, it does not have the outer and middle ears like humans, and it does not have a tympanic membrane, and it can only hear sounds of very low frequency.
Why do performers climb out of the jar while playing an instrument and sway to the beat of the music?
The secret is at the feet of the Snake Dancer. While playing the instrument, he also slaps the ground with his feet. The trained snake would crawl out of the jar as soon as it felt a slight vibration on the ground.
The snake shook its body because it saw the snake dancer shake its body and became angry, ready to attack. The people watching the performance didn't know it, and they thought the snake was dancing to the music.
Of course, some performers do not use the altar, directly put the snake on the ground, and even save the step of "climbing out of the jar".