Is shuttlecock a pest? Why didn't it fall into the water?

Abstract: is Shuihu a pest? Why didn't it fall into the water?

What are the insects floating on the water like spiders in rural wells? I believe many friends have seen this kind of insects, not only in wells, but also in other waters. In fact, their scientific name is Shuihu (pronounced "min").

What is a water cloak?

When I was a child, I often saw this kind of bug in the ditch and the lotus pond. When I was a child, I liked to float in the pond with stones. Every time this bug ran so fast that it didn't fall into the water. Its legs were slippery, and sometimes it jumped. We call this kind of bug "water-climbing fork" here. At that time, the adults in the family would frighten the children that the bug could not be caught and would be bitten. Now when I think about it, it is probably to prevent naughty children from playing by the water.

What kind of bug is the water clover?

The most characteristic part of this bug should be its slender legs. Although the body is not big, the legs are indeed very long and slender. It moves on the surface of the water as if it were on a mirror. There is no need to worry about falling into the water. When I was a child, I was afraid of this bug, because adults said it would bite people. Many people should be curious about why the water jelly is obviously an insect and why it can walk on the surface of the water without falling into the water.

Why didn't the water sink fall into the water?

First of all, because the weight of the water fish is very light, a water fish weighs only 30 milligrams, and there is a film-like substance on the surface of the water, so it is not easy for such a light water to fall into the water. Second, the most important part is the legs of Shuihu, although its legs are very slender and bent about 90 degrees on both sides, which prevents its feet from damaging the water film. In addition, there are some small mysteries about the legs of the water owl. If you catch a water fish and put it under a magnifying glass, you will find that the water fish's legs are covered with fluff, which is hydrophobic. In this way, when you move on the water surface, you don't have to worry about your feet getting wet and falling into the water. It is precisely because of these particularities that the water tank has also become an important symbol for testing the degree of water pollution.

Water tank tests for water pollution

In fact, the principle of testing water pollution is very simple, because if there are more surfactants such as detergent in the water, the water will fall into the water because of the decrease in the tension of the surface of the water. from the depth at which the water falls into the water, we can see the extent to which this area of water is polluted by surfactants.

Is shuttlecock a pest?

This is mainly from the point of view of the predation habit of the water fish, which moves on the surface of the water and generally feeds on small insects on the surface, dead insect carcasses, eggs, and so on, and sometimes becomes the food of fish. Therefore, it should be said that the water clover is a kind of insect with no harm.

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