Why don t humans get rid of rats completely?

I don't know if you have heard of the concept of "four pests", especially in the sixties and seventies of the last century, the "four pests" were defined at the beginning: rats, sparrows, flies, and mosquitoes. The first two plague the crops, and the last two disgust people.

But with the development of the sparrow was rehabilitated and replaced with a cockroach. But the status of rats has never changed, and they are all animals that humans hate.

Rats are a general term for rodents, there are more than 450 species of rats under the rat family, they are distributed all over the world except the polar regions, there are about 34 species in our country, the most common is voles. Most of the rats' preferred food is peanuts, cereals, rice, etc., and the variety of their food also makes them old enemies of humans. Especially in the early agricultural society, the grain production was not high, and the importance of food can be imagined, and it is precisely because rats often compete with humans for food, so according to biological instinct, it is strange not to kill you.

But humans and rats have been entangled for at least thousands of years, yet the rat population has never decreased significantly, or even increased.

In addition to eating our food, rats are also carriers and spreaders of diseases, and there are 57 kinds of diseases that can cause harm to humans through rats, including plague, typhus, epidemic hemorrhagic fever, tick relapsing fever, leptospira, etc. In particular, plague is a very terrible disease, highly contagious and has a high mortality rate. The terrible "Black Death" of the 14th century was the bubonic plague, which killed more than 50 million people in Europe.

Of course, rats are not the only source of plague, on November 16, in the Inner Mongolia Autonomous Region's Xilin Gol League, Bayintara Sumu Quarry in the Yellow Banner, a man 1 suffered a fever during a visit, and was finally diagnosed with bubonic plague. According to his recollection, the patient had fed on a hare on November 5, which may have been a plague case**. <>

First of all, even if all the rats are eliminated, the plague will have other sources. In fact, humans are not capable of exterminating rats, and the reproductive ability of this animal is very amazing. Mice mature early, have a short pregnancy cycle, and have a large number of litters, and mice born in the spring can give birth in the fall.

If left unchecked, the rats will grow exponentially. But fortunately, it's not just humans who hunt rats regularly, and rats have a lot of natural predators. <>

Pictured: Two eagles are snatching a mouse, begging for the psychological shadow of the mouse.

In the wild there are mink, weasels, owls, all snakes, falcons, and eagles, and rats are the main food in the diet of these animals**. It is because of their reproductive ability that they provide sufficient food for these animals above. Rats are definitely important in the food chain in some areas, and if the rats are completely wiped out, it will have a detrimental impact on the entire ecosystem.

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Although rats are hated by humans, if humans completely eliminate rats, it will also destroy the ecological balance and have a great impact on the natural world, so in order to maintain the ecosystem, rats cannot be completely eliminated.

Rats are pests that must be eliminated, but humans can't eliminate rats, and the four pests are rats, sparrows, flies, and mosquitoes. The first two scourges are all caused by crops, and the last two are known to everyone. But it certainly won't go extinct.

Just like human beings do not destroy other animals, it is impossible to eliminate all animals, then nature will not be able to function normally, so there are still animals like mice.

Because rats reproduce quickly and are very adaptable, they will be able to grow their populations quickly in any environment. Even though rodenticides have been developed by humans, the rat's body produces antibodies that adapt to the presence of the poison.

Rats are also part of the planet and have the same right to live. It is also a piece of the ecological chain, so eliminating them will also cause an inevitable disaster, so human beings will not be so stupid.

The reason why the state does not exterminate rats is that rats are an important animal in the biosphere and play an important role in maintaining ecological balance.

Mouse alias: rat, mammalian, rodent, rodent rodent. Its body size is small, and its body color is mainly gray and brown; The upper and lower jaws each have a pair of incisors, most of which are toothless.

It is sexually mature early, the mode of reproduction is viviparous, generally can start to reproduce a few months after birth, can reproduce several times a year, and it is distributed all over the world except Antarctica.

According to statistics, there are about 480 species of rodents in the world, and there are 34 species in China. Its main characteristics are that the body is tapered, there are no canines, there is a gap between the incisors and the premolars or molars, the incisors are developed, there are no tooth roots, lifelong growth, and common rodents are ground short; Act quickly; Plants are the staple food, and some are omnivorous; There are many types. The rat is a rodent that can be large and small.

Habits

You know what ** is with your sense of smell, you come out at night to move, and you hide during the day. High IQ: quite clever, very flexible and cunning, afraid of people, sneaky activities, crawling on the edge of the hole with two front paws when coming out of the hole, looking left and right, to ensure safety before going out of the hole; It likes to build its nest between food and water, and establish fixed routes to avoid danger.

The slightest movement or change in the middle of the line will immediately cause it to be alert, and it will not dare to move forward, and dare to move forward after repeated familiarization; Rats have a strong memory and food rejection, and if they are attacked, they will avoid the area for a long time. Rats come and go without a trace, and never meet people. They have a very sensitive sense of smell, especially the smell of people, and as long as they smell it, they will avoid it from afar.

Because rats carry a lot of germs, and some are very contagious, and this contagion is still deadly, plus rats will steal food and some food in people's homes, so people hate rats very much. After all, rats carry the plague virus, and many infectious diseases are transmitted by rats. So, even though rats can be used as test subjects for human experiments, people don't like animals like mice.

Although rats are social animals, they are also very intelligent and highly destructive to humans. Especially for farmers, rats will eat a lot of grain directly, so rats are hated by many people. However, mice are a good test subject for researchers.

After all, there are many similarities between the genes of mice and humans, and if you use mice for experiments, then the success rate will be higher.

And when experimenting with a drug, because of the rats for the experiment, humans can create a lot of medical supplies, and even make drugs that can save human lives. Therefore, the contribution of rats to human beings is very large. It's just that even though rats play an important role in human society, rats are also a very annoying animal for people.

Rats will not only crawl into the house to steal food, but will even bite clothes and various furniture items, which can be regarded as a king of destruction. If rats are not greedy, then humans will not like them, but they will not hate them. It is precisely because of the gluttony of rats that humans do not like rats.

Moreover, rats carry a lot of germs, and if they come into contact with mice, they may be infected with viruses, so many people do not like mice. In addition, the rat itself is a not very likable animal, so it is naturally not favored by humans.

However, with the development of modern society, some people still prefer mice, which are not aggressive, so for some people who like mice, most of them will choose mice as their pets.

Rats are an important animal in the biosphere and play an important role in maintaining ecological balance, and rats are also an important link in the food chain, so humans cannot exterminate mice.

1. The role of the biological chain

Animals such as owls and snakes in the biosphere eat mice for a living, and the existence of mice maintains the diversity of biological species to a certain extent, and if there are no mice, the survival of such animals in the biosphere will face changes, and the change of these species will cause changes in other organisms.

2. The role of the food chain

Rats are eaten by other species, but they are also carnivores themselves and a link in the food chain. Many insects in nature are the main food of mice**, and while rats bring trouble, they also solve a lot of harm to the city or the environment.

3. The role of scientific research

A lot of human scientific research uses mice to do experiments. Humans come to experiment with mice because they are mammals and have other characteristics that are very similar to humans, and the results of the experiment are of great value. In addition, rats have the strongest ability to survive and reproduce, can conceive eight litters a year, and will not become extinct because of experiments.

Because the vitality of rats is very tenacious, and the rats carry some bacteria and diseases, and because the immunity of rats is relatively strong, so rats will not go extinct.

Because rats have a particularly strong reproductive ability and strong resistance, rats will not be easily extinct.

Because rats have a very strong reproductive ability and a very special way of survival, rats are not easy to go extinct.

Because rats are very reproductive, and they have a strong ability to survive, that's why they say that.

In the countryside, we often hear the old people say, "Rats cross the street and everyone shouts and fights", and we all hate rats very much, because they not only eat food, but also often gnaw on the utensils or woven bags that hold food.

But the rats in the house seem to be fighting more and more, and many people think that the rats are taking revenge on us. In fact, this is not the case, rats do not retaliate against humans, because they do not have such a high IQ, and they do not dare to argue with us humans.

Of course, there are two kinds of "rats" included in this sentence, the first is the real rats in nature that I mentioned above, and the second is the scum of our crowd, those who misbehave.

For these two different "rats", there will be different reactions and performances after encountering the situation that everyone shouts and beats, which can be divided into the following two situations:

1. Real mice in nature For the real mice that we all hate, if it is after experiencing the scene of crossing the street and being chased and beaten, let alone revenge on humans. If you can survive by luck, you may not want to set foot in the city for a long time to come.

This time, everyone's experience of shouting and beating has left a serious psychological shadow on them. So that they will instinctively seek advantages and avoid disadvantages, and use the method of staying away from the crowd to escape people's pursuit and hunting.

2. The "rats" in the crowd are not real rats, but those who are not parallel and improper. And this kind of "rat" will also leave a psychological shadow after facing the scene of everyone shouting and beating, but it will also plant the seeds of hatred accordingly.

I think this kind of person will be a man with his tail between his legs in his future life. But that doesn't mean they have forgotten what happened before and have changed their ways.

I think that as long as there is an opportunity to let them get ahead, after they have achieved something, they will return the damage they have suffered in the past.

Based on the above situation, "everyone shouts and beats rats crossing the street", after experiencing such a scene, rats will not retaliate against humans, but will only flee to a place far away from human activities to survive.