In the hot summer, the most unique music can not hide in the trees and grass cicadas, accompanied by the fiery sun, let our irritable mood more comfortable and relaxed, it can be said that the summer without cicadas is not wonderful, is such an ordinary species, in addition to our long chirping, have we really understood the cicadas? In the scorching sun, who would have known that in addition to the air conditioning water dripping on our heads, there is also the urine of cicadas?
<h1 class="pgc-h-arrow-right" data-track="5" > misunderstood "drizzle" – cicadas peeing on trees</h1>
For humans, cicadas are actually a pest, because they specialize in sucking the sap of trees, and also lay eggs on trees to feed on the young roots of trees, so in the eyes of humans cicadas are a pest.
In nature, there are nearly 2,000 species of cicadas, such as red-eyed cicadas, autumn cicadas, grasshoppers, etc. The life of cicadas is extremely long, from eggs the size of rice grains, to growing into larvae, and then to becoming pupae, it takes three or four years, or even more than ten years.
For example, the so-called 17-year cicada needs to wait underground for 17 years, which is the life of the cicada. Ordinary cicadas in the process of reproduction and development, will choose to lay eggs on relatively thin branches, sharp tools on the chest, will release cicada eggs, generally speaking, a female cicada lays about a total of about 400 eggs.
These hatched cicada eggs resemble particularly small fish eggs with a fin under the body that helps the larvae get out of their shells. Because of the wide variety of cicadas, the cicadas that can sing are called cicadas, and in addition, all cicadas have one thing in common, that is, they will "pee" on the trees.
Relevant foreign media reported in May this year that in the United States in the woodlands, parks and other places, there were tens of thousands of "17-year-old cicadas", these cicadas gathered together to make a cicada sound, into a noise to bring a lot of trouble to the local people, in addition, as these large numbers of cicadas climbed to the tree, then people suffered from the phenomenon of "rain" on sunny days, biologists found that this is not a "drizzle" on a sunny day, but "cicada urine".
Coincidentally, such a situation has also emerged in our country. When the security uncle for decades, in the community patrol found that there is always a piece of pavement is wet, at first thought it was splashed with water upstairs, after investigation found that it is not, the owner believes that the community pipe leaks, but after the investigation, it is not caused by this problem, and finally found the root of the problem with the help of the staff of the garden management office, the reason why the road is wet Is the culprit is the urine of cicadas from the tree.
Cicadas will gather together according to the breath of the tree species, coupled with the summer is the peak of their breeding and mating, there are more cicadas on the tree, there will be a sunny day "drizzle" situation, the cicada's urine, so that the road in front of the road becomes wet.
<h1 class="pgc-h-arrow-right" Data-track="17" Why do > cicadas urinate in trees? </h1>
You know, cicadas rely on the sap of plants to maintain life, and when these cicadas suck up too much of the sap of plants, they can't fly because their bodies become heavier. In order to prevent humans from catching them, these cicadas have to quickly excrete the "juice" of the plants obtained in the body, and when the weight of the body gradually becomes lighter, the cicadas can fly away.
It is worth mentioning that for the urine excreted by these cicadas, everyone does not have to worry, it is not like a gecko, the urine excreted is poisonous. The urine excreted by the cicada is not actually real urine, but the sap of the plant, which is also rich in a certain amount of sugar, which is harmless to people and will not affect vegetation. When the cicadas on the trees gather more, the "liquid" will continue to drip down, turning into a spectacle of "drizzle" on sunny days.
<h1 class="pgc-h-arrow-right" data-track="22" > cicada is not a weapon of "urine", but a way of self-protection</h1>
Compared to other animals, the cicada is inherently deaf, but its vision is excellent. When some people are ready to take the bamboo pole and get closer to it little by little, the cicadas will quickly find that while they are constantly shaking their wings, they will also quickly "squirt urine" at you.
So every time they encounter this, most people will feel that this is the cicada using "urine" as a weapon. However, in fact, this is a misunderstanding of cicadas, cicadas do not intend to attack humans with their own urine, they just have to excrete the "juice" from the body, reduce weight, and can quickly escape in a critical moment.
It is worth mentioning how much liquid the cicada discharges, depending on how much sap it sucks, there is a very delicate "straw" in the mouth of the cicada, this straw is like a very sharp awl, hidden in the chest of the cicada, when the cicada wants to suck the "sap" of the tree, it will keep drilling the bark, the longer their cry, the deeper the drill, the straw is inserted into the barrel of the tree, the cicada will feast and suck.
When threatened, cicadas will be frightened to immediately release body fluids, lose their weight, and quickly fly away, it can be said that cicadas do not use "urine" as a weapon, but this is a self-protection measure for them. Adult cicadas, their lifespan is extremely short, so when the cicadas become adults, they will be eager to find a suitable partner in a limited time to reproduce their offspring, compared with female cicadas, male cicadas are the saddest, they only try to keep chirping, will attract the attention of female cicadas, but after each mating, male cicadas will end their lives.
The active time of cicadas is very short, so only in the summer of each year will appear, and in the autumn it will disappear, and now there are many people who do not follow the laws of nature, randomly hunt cicadas, take them as the best ingredients, cicadas are indeed rich in nutrients, containing extremely high protein, vitamins, but if people over-catch cicadas, it will destroy the ecological food chain in nature, and one day the cicadas will completely disappear in this world, and at that time, we can no longer hear the pleasant cicadas from the summer. This is, i.e., a great sadness.
Overall, on the occasion of the hot summer, we should not think that what drips on the top of the head is air conditioning water, it may also be the "urine" discharged by cicadas, although for humans, cicadas are a pest, but it is an indispensable role of nature, although they will destroy trees, but the emergence of cicadas can better help transfer and decompose nutrients in the ecosystem, make the soil breathable, is the cuisine of many carnivorous animals, such as birds and praying mantises, and it is precisely because of the presence of cicadas. The food chain ecosystem in nature is in a state of balance, so for human beings, we must be kind to everything in nature, even if it is an inconspicuous "cicada", it must not let them disappear, otherwise this summer will lose the wonderful music brought by the "cicada song".