How big is the largest rat How big is a rat?

The largest rat in the world is the possum that belongs to the Americas.

It weighs 10 kilograms and is more than half a meter long. A rat that is one meter tall is a capybara.

In South America 4 million years ago, there lived a giant mouse. They are even larger than cattle in size. Recently, in South America Uruguay.

Fossilized skulls of this mouse have been discovered. The fossil is about 53 centimeters long, and scientists estimate that the giant rat weighs about 1 ton, is 3 meters long, and is 14 times larger than the largest rat species today. It is the largest rat in history.

This super rat is in South America.

After careful observation and research, it was found that the skull belonged to a creature that had never been seen before, and it looked like a guinea pig.

and beavers. Huge front teeth up to 10 cm long.

The largest rat found in our country:

July 6, 2006, Xi'an Qinling Wildlife Park.

Six "King Rats" with a body length of 60 to 80 cm and a weight of 5 to 9 kg were introduced from Guangzhou.

In the morning, the six giant rats that had just come to the new cage kept scurrying, and a "rat king" with brownish gray hair mischievously got out of the crack at the bottom of the iron fence and ran into the yard. The sudden giant rat made the cat scream instantly, and the "Rat King", who had just been a thief, curled up in an instant and looked at the cat motionlessly at a loss.

They confronted each other, and after about 2 minutes, the "Rat King" moved his tail slightly, and the cat erected its whiskers and the hair all over its body screamed hysterically, causing the "Rat King" to keep shrinking its head between its two forelimbs. And the cat was just shouting, and at this time, its whole body was trembling. Fifteen minutes later, when the staff forcibly dragged the "Rat King" out of the cat cage by the tail, the cat showed its nature of catching natural enemies, screaming and pounced on the "Rat King".

I've seen a rat so big, as big as a medium cat, so scary that cats don't dare chase it.

The largest rat I've ever seen is about half a pound, and the one I saw many years ago is now smaller.

2. Small mus mouse: gray coat, small individual, in addition to the root of the wall to make a nest, often with people as a companion, the weight is about 20-30g.

3. There are also roof rats, big hamsters, yellow rats, etc.

4. Yellow-breasted rats: smaller than brown rats, with a general weight of 100-250 grams, long tails and large ears, and tail length exceeding body length.

I've caught a pound and a half of mountain mice, and theoretically there are bigger ones, and house rats are generally half a pound is considered very big.

There are 10 rats in the world reporting for duty, and China's Xi'an Qinling Wildlife Park introduced six "rat kings" from Guangzhou on July 6 with a body length of 60 to 80 centimeters and a weight of 5 to 9 kilograms. It is reported that when the cat and mouse met, the cat was so frightened that its beard and hair on its body stood on end, and it barked hysterically.

The largest species of rat in the world belongs to the American opossum, which is large and almost identifies a large cat. An American scientist once captured a possum that weighed 10 kilograms and was more than half a meter long. It likes to eat small insects and leaves, and this opossum is more intelligent and will play dead to deceive people or other animals.

In general, males are about meters long and weigh 180-306 kilograms, while females are slightly smaller and have a long body.

The largest rat in the world is the capybara pig. Capymuas are genetically similar to rats and belong to a type of mouse. But the whole is much larger than a mouse, 100 times that of an ordinary mouse, with a length of more than one meter and a weight of 100 catties, just like the size of a domestic pig.

Capybara rat head body length 106-134 cm, shoulder height 50-62 cm, weight 35-66 kg. Females are slightly larger. They resemble oversized guinea pigs in appearance.

Capybaras are good swimmers and have small webs between their toes. Four toes on the forefoot and three toes on the hind foot. Young capybaras are much lighter than adult capybaras.

Capybaras stay at the water's edge all their lives, and their diving "skills" are very good, sometimes exposing their nostrils, ears and eyes to the water, breathing air, and observing the outside world. Capybaras do not build burrows and rest in ready-made shallow dens; If the habitat is disturbed, it will hide in the bushes by day and night, and when running on land, it will be like a horse running, and it will be forced to jump into the water in a hurry. Capybaras spend most of their time foraging for food.

About 50 cm.

Rats are a kind of rodents, belonging to the class of mammals, rodents, and are the most diverse, widely distributed and abundant of mammals. It has the characteristics of short lifespan, fast sexual maturity, large litter size and strong adaptability.

In China, there are about 170 species of rodents, 32 species of main rodents in southern China, and rats have two types: domestic and wild.

Mouse features. 1. When you go out at night and lie in the day, you can know what food is in it by smell, and after you are full, you will fight and chase in twos and threes, and when you are hungry or find new delicious food, you will have a meal together.

2. Very flexible and cunning, afraid of people, sneaky activities When the two front paws climb on the edge of the hole, look left and right, and feel safe before coming out of the hole, it likes to establish a fixed route between the nest - food - water source to avoid danger.

3. Agile eyesight Most of the mice are active and foraging at night, and the nocturnal mice can detect moving objects in very low light, and the mice that are active during the day have better eyesight.

4. The ability to drill holes is high, and the rat holes are obvious, often in the walls, livestock pens, and warehouses.

5. Strong memory and food rejection Changing a part of the familiar environment will immediately cause it to be alert, and it will not dare to move forward, and dare to move forward after repeated familiarization. If attacked, it will avoid the place for a long time.

Rats transmit a variety of zoonotic diseases, can carry more than 200 kinds of pathogens Hanchang Town, of which there are 57 kinds of pathogens that can cause human disease, and the great harm to humans are: plague, epidemic hemorrhagic fever, leptospirosis, etc.

nbsp;When it comes to mice, I believe most people hate it, in people's impressions, the size of rats is not big, generally more than 10 centimeters long, how big can the world's largest rat be?

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