The little boy sends "O" sounds to become a group of mosquitoes. Experts: Normal phenomena, mosquitoes can feel low -frequency sound

Jimu Journalist Zhang Hao

Video editing Ma Xingxiang

Recently, after a boy issued a "O" sound, many mosquitoes came from the videos, which aroused the attention of netizens. Many netizens thought that the above phenomenon was very strange. On June 23, Zhou Xingmiao, an associate professor of insect studies of Huazhong Agricultural University, told Jimu Journalists that the above situation was a normal phenomenon. Mosquitoes heard the low frequency of "O" and would gather together.

The online video showed that a boy made a "oh" sound outdoors, and many mosquitoes gathered in front of him, and then he tried it repeatedly with this method. The above video aroused the attention of netizens. Someone asked him to put the electric mosquito to his mouth. I saw a mosquito drill into the electric mosquito and was shot to death.

(Source: video screenshot)

Some netizens speculated that the principle said that mosquitoes judged "prey" based on carbon dioxide. When the boy posted "Oh" sound, he would discharge a lot of carbon dioxide in the body. But some netizens refute, "So do my legs often emit carbon dioxide?"

还有网友分享了儿时经历：“嘴巴发出哦哦哦的声音就能召唤许多蚊子，这在我们小时候不是常识么？大人看到我们这样还制止我们，说是蚊子有毒，不让我们用手Go to fight. I don't know much about the principle. It is estimated that the sound frequency can be received by mosquitoes, and then they are gathered together. "

In response, Jimu Journalists asked Zhou Xingmiao, associate professor of insect studies in Huazhong Agricultural University. He said that this is a normal phenomenon because mosquitoes can feel low -frequency sounds. Outdoor mosquitoes are generally activated below 1 meter. The frequency of the sound is between 350 and 550 Hz. The child emits "O" sounds, which just meets these two conditions at the same time. Essence The audio and heights of people's speeches are exceeded the above two conditions, so there will be no mosquito recruitment.

"Many insects have a audio -visual hearing device with a specific part of the insects." Zhou Xingmiao further introduced that this type of hearing device is called 'Jiang's instrument' in academic majors. The low -frequency sound of "buzzing", he heard the low frequency of "O" gathered, it was not surprising.

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