In the world of animals, the same kind of animals, in different regions, also have their own different "dialects".
Researchers at Pennsylvania State University in the United States have found that American crows can emit a special alarm tone, and other American crows will fly away when they hear it. They recorded the sound and played it to the French crows, and instead of flying away, they gathered together or didn't react at all.
It seems that the French crows could not understand the "foreign Chinese", and they also found that the crows caged in two different states could not understand each other's "local languages" at all. Interestingly, the cockroaches also have "dialects", the males make sounds by rubbing their wings, and their "language" is mainly used to summon females to come and have sex. Slugs are pests that eat the roots and stems of grass seedlings. In order to eliminate the scorpion, China's entomologists have experimented with a sound seduction method: using a high-sensitivity tape recorder, the male cadaver's "love song" is recorded, and it is played in the field in the evening. Under the beautiful love song, female slugs have come to find male "partners", and people can take this opportunity to hunt them down. However, unexpectedly, the love songs recorded in the Beijing area can attract females in the area and play them in the fields of Henan, where the females cannot understand this "dialect love song" and refuse to come to "date".