Do you know why it screams so loudly, and why does it scream so loudly?

I know that "singing" is the call to courtship. Only adult males know that they can make sounds, and females know that they can't make sounds.

They are known to be the longest-lived insects in the world, but they spend most of their lives underground. The larvae live underground and generally take 2 to 3 years, and the long ones take 5 to 6 years. Now, it is known that the longest lifespans are 13 years in the Americas and 17 years in the Americas, which means that they hatch every 13 or 17 years, following a bizarre cycle of life.

Scientists call it periodic knowing. The knowing larvae emerge from the ground, leaving holes in the ground like beehives, which have no wings at that time, but their front legs are strong and powerful, and they climb up the grass or treetops, and when they take off their pale yellow cicada clothes, they become winged. The male will soon be able to sing, and the female will undoubtedly be a beautiful love song, speeding up the "wedding".

A few weeks later, the male and the female died after completing the Race Continuation Mission.

British scientists have confirmed that the frequent peculiar sounds (and crickets) are directly related to temperature. A kind of graph was drawn to predict whether it would be cold or hot the next morning, based on the number of "chi" sounds made by the chi.

The female cicada has a vocal device on her abdomen, which is called so loudly that it is to attract the male cicada, mate with it, and reproduce the next generation.

It's a call, or a wait...

Beijing Deshengmen Hospital of Traditional Chinese Medicine-Wen Jihuan-Deputy Chief Physician-What are the consequences of long-term encephalitis?

Cicadas are deaf and cannot hear anything.

Fabre, the famous French entomologist, spent a lot of time studying cicadas. But why do cicadas love to sing so much? He couldn't figure it out. He used to stand quietly behind the cicada, talking loudly, whistling, slapping, throwing stones, and the cicada continued to sing without care.

Fabre simply found two earthen guns and fired them next to the cicada, and although the sound was like a thunderbolt, the cicada still sang loudly. Fabre concluded that the cicada did not have the ability to hear the pena, and that it could not even hear its own sounds.

Characteristics of life

The larvae of cicadas live in the soil, and after the larvae become adults, they will live on trees. They are louder in summer and feed mainly on tree sap.

Adult cicadas like to suck the sap of trees, and using the stinging mouthparts to suck can weaken the tree, cause the branches to die, and affect the growth of the tree. At the same time, male cicadas can chirp, and each cicada's call is different. Generally, the cicada's articulator is in the abdominal muscles, like a large drum covered with a layer of eardrum, and the eardrum is vibrated to make sounds, while female cicadas do not chirp.

The sound of the knowledge is because they chirp in the summer, so they are called "summer cicadas". The sound they make is continuous, high-pitched and monotonous, sometimes lasting for hours and hours, making it feel very harsh. In some parts of China, the sound of knowing is considered an auspicious omen, and Hanna will arrive at the beginning of autumn.

It's a bit like the summer "know the cicada know the cicada".