Rats have many natural predators in nature, but why are they still difficult to exterminate?

Why are rats so hard to kill? When it comes to mice, people will immediately think of "a grain of rat droppings spoils a pot of porridge", "everyone shouts and beats rats crossing the street" and other afterwords, rats seem to be "harmful but not beneficial" in people's eyes, it will even make some girls crazy or jump feet, seeing mice is like a nightmare!

Similar to the causes of the Australian rabbit disaster mentioned earlier, rats also have a strong reproductive ability and survival ability, inhabiting sewers, stone crevices, accumulations, wall corners, eaves, fields, mountains and forests, etc., and are distributed all over the world except Antarctica, and there are more than 3,000 species, which is the world's largest variety and largest number of mammals.

The strong reproductive ability of mice, mainly related to its "precocious puberty" and "gestation" cycle is short, under normal circumstances, female mice have the ability to reproduce three months early, the pregnancy cycle is about 21 days, and can give birth to about 7 fetuses a year, a litter can reach up to about 10, it is really a full litter of rats, it is no exaggeration to say that a male mouse and a female mouse, a year conservative can create 200 300 mice, it is simply the same as the "fertility machine" in animals.

The survivability of rats is mainly reflected in three aspects: first, the "IQ" of rats is relatively high, and they are extremely alert, and their intellectual maturity seems to be comparable to that of humans, and they can "set up camp" under their noses without being easy to detect; Second, rats can naturally adjust the reproductive rate according to the number of populations and the amount of food, which is actually closely related to the improvement of human material life, the waste of food is a clear example, garbage bins (barrels) and other places have become one of the main foraging grounds for mice; Third, the destruction of the ecological environment has reduced the natural enemies of rats in the food chain, such as snakes and eagles, resulting in a large number of rats, which in turn affects the safety of human life and property.

In the area south of the Tropic of Cancer in our country, some mice are bigger than cats, and it is common to see mice "passing by" from the cat's side, and the well water does not interfere with the river water, and they all seem to be afraid.

Judging from the above analysis, rats are certainly hateful, but a certain population of rats also maintains the normal operation of the biological chain, so we must be "merciful" in the process of exterminating the four special pests of rodents, and we cannot engage in one-size-fits-all.

Because the rat has a strong ability to reproduce, and the rat cannot disappear completely, the rat disappears completely, then the food chain will be broken.

It is because his reproductive ability is particularly strong, and he can also adapt quickly and have a strong ability to act, so there is no way to extinct it.

The main reason is that rats can give birth to a litter at a time, and the rat's reproductive ability is particularly strong, and the survival ability is also particularly strong.

Why are rats so hard to get extinct? First of all, rats are very reproductive, a female mouse will have more than 2,000 offspring a year, and secondly, rats are very adaptable, and they can survive for a long time in extremely harsh environments, and they eat almost everything, and they don't have a lot of food needs, plus people's destruction of the environment and keeping pet cats, which leads to mice.

Because rats have a strong ability to reproduce and like to hide themselves in life, they are difficult to exterminate.

First, its own reproductive ability is particularly strong, resulting in too many numbers, and the base is too large to be removed. Second, the ability to adapt is too strong, and it can survive no matter what the environment. Thirdly, due to the domestication of humans, the current cat has become a domestic pet, losing its ability to catch mice, and its natural enemies have disappeared.

When people think of rats or rats, they always think of their habits of stealing food, destroying crops, and even spreading diseases. "Rats cross the street, and everyone shouts and fights"This idiom completely breaks the deep hatred of human beings for rats. But do you know who is more likely to become extinct, humans or rats?

Strong fecundity, mice in the food is abundant, is generally a litter will have three to ten small mice. There will be at least three litters a year, and it is difficult to catch them all under such fertility.

There are so many natural predators of rats, why is it still so difficult to exterminate? Is there any scientific basis for this?

Most directly, humans are only a few million years old, while rats already have.

4. 50 million years of history.

Super reproduction.

Precious protected animals mainly have low reproductive capacity. For example, giant pandas, our national treasure, need to grow, mate, and then give birth. It's a long cycle.

Mice, on the other hand, can conceive at 30 days and give birth to cubs 21 days after mating. And there are only a dozen at most at a time. In this way, there are seven generations in a year. A pair of mice can have more than 5000 offspring a year...

Strong Residency Advantage.

Rats are known to burrow on their own, which has the advantage of avoiding predators and natural disasters. Another advantage is the ability to adapt to the environment. Although many animals eat mice, neither can they when the teacher returns to the hole.

Then they make their own houses. In this way, no matter where we go, as long as we have some food and land, we can live with peace of mind.

Adjustment of self-reproduction.

1) Rats are intelligent when around humans. If they come across a granary or a good food storehouse, they will multiply in large numbers. If food is scarce or well protected, reproduction will be reduced.

2) In nature, when the weather is good, rats reproduce, but not too much depending on the situation. Otherwise it will be like an epidemic of rabbits. So I've never heard of a rat epidemic.

In general, rats are mainly fast reproducing and adaptable, so they have been passed down from generation to generation over thousands of years of history.

Because rats have a super reproductive ability, and the reproductive ability is very strong, so it cannot be exterminated, and also because rats are a link in the food chain, which is scientifically based.

Rats are forty or fifty million years old.

Because rats have a super ability to grow, and the growth ability is very strong, so it cannot be exterminated, and because rats are a link in the food chain, which has a scientific basis.

Why are there so many natural predators of rats that are still difficult to exterminate?

Because the rat's reproductive ability is particularly strong, and his reproductive ability is stronger than that of other animals, there are so many natural enemies of rats, but none of them have been destroyed. It is because of its strong reproductive ability.

The rate of reproduction is fast. There are many rats every time they reproduce, and rats burrow in the ground, so they are not easy to spot.

Because rats also have a certain use, rats are also natural enemies to restrain other harmful animals, and the presence of a small number of rats is not harmful to humans.

Because they are particularly fertile and have multiple races, the abundance of natural predators is the way to restrain them.

It's good for humans, because rats basically only do us harm, such as eating crops in the field, scurrying around the house, etc.

It is certainly a disadvantage to humans, because the existence of any living thing in nature is justified.

Scientific research experiments will be affected, mice are already the most common experimental animals in the medical field, and almost all innovative drug research and development and trials need to be carried out on mice.

The extinction of rats will affect the population that feeds on rodents, and if owls and snakes can change their food structure after the extinction of rodents, they will feed on other animals or plants, which will inevitably affect or limit the development of other species that feed on them. If you can't change the structure of your food, you'll slowly or quickly become extinct.

There is a relatively balanced biological chain in nature, for example: the leaves and fruits grown by plants provide food for insects, insects become a food source for birds, with birds, there will be eagles and snakes, and with eagles and snakes, rodents will not become disasters......When animal droppings and carcasses are returned to the soil, microorganisms in the soil break them down into simple compounds that provide nutrients to the plant and cause it to grow new leaves and fruits. The biological chain establishes a healthy cycle of substances in nature.

Humanity has learned that the extinction of a population affects the health of the species associated with it and affects the next link. Although the impact is slow, it is real. In the end, it will definitely affect the survival and development of mankind itself.

The rat simply cannot be extinct, and even if the human race becomes extinct, it will not become extinct, because on the earth it is more than human, so to speak, the ancestor of the human race. Humans hate it because it's so destructive.

Expansion: 1. Introduction:

Rats (colloquially called"Mouses"), mammals, rodents, rodents.

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. There are many species of rats, and there are more than 450 species in the world.

Rats are one of the most primitive mammals in existence, they are vigorous, numerous, and extremely fast to reproduce, and they are very adaptable, eating almost anything and living anywhere. Rats burrow, climb trees, and can transmit plague, epidemic hemorrhagic fever, leptospirosis, and other pathogens. But rats provide humans with countless experimental data on medicines.

2. Appearance characteristics.

The main characteristics of mice are that the body is tapered, there are no canine teeth, there is a gap between the incisors and the premolars or molars, the incisors are developed, there are no tooth roots, they grow for life, and they are often rodted to grind short.

3. Life habits.

1) High alertness.

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 will immediately arouse its vigilance, and it will not dare to move forward, and dare to move forward after repeated familiarization; Rats have a strong memory and are resistant to food, and if they are attacked, they will avoid the area for long periods of time.

When you go out at night, you can often see rats crossing the streets and alleys, and many friends will feel that rats are very disgusting and scary, and even hope that rats will be extinct, if rats are really extinct, then what will happen to the earth? Let's take a look at it today.