Why do cicadas cry and crickets cry?

The scientific name of cicada is cicada. In fact, cicadas are pronounced through a pronunciation device located in the abdomen. Only male insects have this structure, mainly to attract females.

It is well known that crickets are good at singing. It is very interesting to understand and distinguish the meaning of cricket chirping. Among many chirping insects, the chirping of crickets is the most colorful and has the following five meanings:

(1) two males meet and make a provocative call. If one side of the decisive battle wins, it will play a triumphant song, with a loud tone and constant singing, and the volume is as high as 75 decibels.

② Male and female are in the same cave, and the male insect courted the female insect with "love songs". At this time, the male insect will make a beautiful and euphemistic tone, just like the "bass" played by the band, which is pleasing to the ear and the volume is below 60 decibels.

(3) When a pair of "lovers" mate, they often make a happy sound: ring the bell-ring the bell ... just like the phoenix begging for the phoenix's "love song".

(4) Without any interference, the chirping of crickets is clear and loud. What we usually appreciate is this kind of crying, and it is also a cry that distinguishes the quality differences between individuals.

In order to protect their territory from infringement, crickets often threaten each other with warning sounds, which are strong and short, with the volume ranging from 66 decibels to 72 decibels.

? It is interesting for cricket lovers to ponder over the meanings of the above five songs.