How long do rats live? How many years do rats live?

The lifespan of various types of rats is not the same. House mice have a lifespan of only two years. The world's largest rat, the capybara, weighs more than 50 kilograms and has a lifespan of up to 12 years.

Rats are mammals, rodents, rodents, commonly known as "rats", the mode of reproduction is viviparous, is the fastest reproduction of mammals, strong survival ability of animals. There are about 480 species of rodents in the world, and their tracks can be seen both indoors and in the wild.

The lifespan of a mouse is 1 to 3 years. The "Compendium of Materia Medica" says: "It has the longest lifespan, so it is commonly known as a mouse."

This is not to say that individual rats live long, but rats live long on Earth. Rats generally live for 1 to 3 years, but rats have lived on the earth for about 47 million years, and in this sense, rats can be called "old friends" of humans. There are many species of rats, there are about 1,700 species in the world, and there are about 170 species in China.

HabitsInhabits grasslands, semi-deserts, farmland, hillsides, etc., and occasionally enters the interior. Joy to live alone. It is active day and night, with the most frequent activities in the early morning and evening.

The range of motion is small, mostly within 10 meters. There is no habit of hibernation, but there are fewer burrows in winter. It mainly relies on the left and right cheek pouches in the mouth to carry grain and store it in the cave for wintering.

Under the right conditions, it can reproduce all year round. There is a breeding peak in April, May and August and September every year; Generally, 4 5 litters per year, each litter produces 5 8 piglets.

1 to 3 years.

Rats are extremely adaptable to their environment. Rats can live in the heat of the desert and can endure freezing temperatures as low as -50. The rat moved quickly, and the vole, which weighed about 30 grams, was equipped with an activity recorder and found that it could walk 16 kilometers a day.

Brown rats, on the other hand, can walk more than 25 kilometers. Rats usually live between 1 and 3 years. Under the experiment of artificial breeding, brown rats can live up to 5 years in an environment of 22 and 60% humidity using selected feed.

Classify. Rats are a large family. Rats belong to the category of mammals in the zoological classification.

The rodents and rodents, commonly known as "rats", are the fastest reproducing and very survivable animals among mammals.

There are about 480 species of rodents in the world, and there are 34 species in China, including brown rats, black rats, voles, and marmots.

Hamsters, rock rats, bamboo rats. Wait.

The lifespan of mice is 1 to 3 years.

Usually rats have a lifespan of 1 to 3 years. The lifespan of various mice is different, and the lifespan of house mice is about two years. Mice mature early, have strong fecundity, and have a lifespan of 1-3 years.

Rats are the most rapid and successful of the mammals. For example, a house rat that often lives in human areas can conceive up to eight times a year, and each litter can give birth to four to seven young mice.

They are highly reproductive, adaptable, and have a high chance of survival, so their numbers are growing very quickly. They can mate all year round, have a gestation period of about 21 days, and give birth to 6 to 8 litters a year, and 5 to 10 litters per litter.

Growth and reproduction: strong adaptability, wide distribution, many species. 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 fast.

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.