Why are flies hard to fight?

Talking about flying, I believe you will have the same feeling, that is, flies respond very fast, very difficult to fight! Little stinky fly, why does it react so quickly? To uncover the mystery, the researchers conducted a special survey of flies.

Why are flies hard to fight?

Have good ears and eyes

Researchers first studied a parasitoid fly, which they found was extremely sensitive to hearing. Then they discovered that the flies had two “ears” on their chest, and that the two “ears” tympanic chambers were close to each other, with an interval of only about 100 microns. When an “ear” near the source first hears the sound, it immediately transmits information to the nervous system. The nervous system then measures the pressure difference between the ears, which takes only 50 nanoseconds (1 nanosecond equals 10-9 seconds), and then sends signals to the muscles to escape the sound source. This structure allows the fly’s auditory organs to recognize sound and transmit information many times faster than human ears, feet and feet. In this case, human aggression is usually detected by the sensitive auditory system of flies.

In addition, the visual system of flies is extremely developed. Many tiny organs in flies are directly connected to their eyes, and even their brains are almost entirely involved in the processing of visual information. Flies have no eyelids, so they often wipe their eyes with their paws to keep their eyes clear. Fly eyes respond 10 times faster than human eyes. The fluorescent lamp flickers 60 times a second, which the human eye can’t detect at all, but the fly can see it effortlessly. It is the keen visual ability of flies that contributes to their fast-moving characteristics. The flies’eyes acquire visual information and respond in a timely manner. The fastest time for this process is only one third of a second, which is obviously many times faster than the human response.

In response to the flies’sensitive vision, the flies can change their flight direction at any time according to the specific situation when flying rapidly, thus avoiding sudden attacks from any direction. In fact, the nerve transmission process from gazing to flapping flies is far less rapid than that of flies. No wonder we can only sigh at flies sometimes.

great talent

Flies are difficult to hit, but there is another reason, that is, they have the special function of “eaves and walls”. Flies can walk freely on smooth and erect glass panels, and the adhesion between their pads and glass panels is enough to prevent their bodies from sliding or falling down. The fly can even fall back and stay still on the ceiling, which makes it impossible for the person standing below to stare at it. Some people have compared other flying insects with flies. They found that even though the weight of other flying insects is similar to that of flies, the ground attraction of these flying insects is much greater than that of flies because of their different shapes. Finally, the adhesion of the pads attached to the feet of these flying insects can not compete with the ground attraction, so the flying insects are easy to fall off. Come on. It is because of its special shape that flies can walk lightly on any facade of a room or even on the flat roof of the ceiling. This is also one of the reasons why flies are always hard to hit.

Flies have a variety of stunts in one, which allows them to dodge swiftly when attacked by outside objects. Of course, if the fly is absent-minded, such as when it turns its head and stretches its legs and combs its wings, the result will certainly be different. In short, it is not easy to fight flies.