How many species of rats are there and what are the rodents

With more than 500 species, the muridae is the second largest family of mammals, and its members are very diverse and can be divided into several subfamilies, most of which belong to the murine subfamily murinae. The black mus rat rattus, the brown rat rattus norvegicus and the mus musculus of the mouse genus have arrived all over the world with humans and are the most successful and common mammals, generally regarded as pests, and albino varieties have also been cultivated for medical experiments. In addition to human-dispersed species, the natural distribution of rodents is confined to the Old World, with many species being limited and some endangered or extinct.

There are two distribution centers of the rodent family, one is from southern Asia to Oceania, of which the South Ocean archipelago is the most abundant species, and the other is Africa, which has fewer species than the previous region. These two regions have their own genera and species, and only a few of them, such as the mouse genus Mus, are common to the two regions. In addition to several house mice that spread with humans, only two genera of the rat family, Apodemus and Micromys, can be found in Europe and northern Asia, and a few species such as rattus rattoides are distributed in other parts of Asia, and other species of the rat family are confined to these two regions, among which the nest mouse genus is only one species, Micromys minutus (below), which is distributed in a large area of Eurasia and is small and light. It is one of the smallest rodents with a winding tail that can climb on grasses, also known as Old World Grass Rats, which corresponds to the New World hamster species True Grass Rats.

The members of the rodent family adapt to different living environments, and their morphology and habits are relatively diverse. The morphology and habits of typical members of the rat family are similar to those of house mice, but some are quite different, such as the Australian water rat Hydromys chrysogaster is larger, weighing up to one kilogram, semi-aquatic, and feeds on fish and other aquatic animals; Australia's notomys are bipedal jumpers that live mainly in desert areas, similar to the Gwanglu rats in the Americas; The hairs of the African agoutic rats, the Ryukyu hedgehols Tokudaia of the Ryukyu Islands, and the platacanthomys, which migrated from the subfamily Dormicea, became protective spines. There are also quite a few species adapted to arboreal life. In the rat family, there are many different members of the genus Rat, such as aquatic, arboreal, and spiny members.

The rattus genus is the largest genus of rodents, but also the most chaotic one, some believe that more than 180 species, is the largest genus of mammals, and some members have been merged or removed, leaving only about 80 species whose distribution is basically limited to Southeast Asia and Oceania, less species than the insectivorous order Musk Shrew, but even so, it is still the largest genus of rodents.

There are many of them, and the rats in the house belong to the rat family.

Rats are rodents of the mamma, rodents, and rodents of the family Ratidae.

With more than 500 species, the rat family is the second largest family of mammals, and its members are very diverse and can be divided into several subfamilies, most of which belong to the rat subfamily. With the exception of species that have been artificially dispersed, the natural distribution is limited to the Old World. The ears are short and thick, the eyes cannot be turned forward, and the hind feet are thicker.

Characteristics of mice

1. Poor eyesight: myopia, tentacles are "guide sticks", and they like to run along the edge of the wall.

2. Strong ability to drill holes: often make holes and build nests in walls, livestock circles, warehouses, and houses.

3. Good at climbing: very flexible, good at climbing, able to crawl quickly on trees or power lines. The claws are bent in a special arc, allowing them to climb almost vertical ground.

4. High intelligence: The intelligence of rats is beyond our imagination, and the intellectual maturity seems to be comparable to ours. Rats are intelligent, mysterious, almost human-like.

Hello, I have seen your question and am sorting out the answer, please wait a while Rodent rats (Latin scientific name: muroidea, alias: rats), mammals, rodents, rodents.

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.

1. African spiny rat: It is a collective name for 18 species of animals of the order Rodents, the Ratidae family, and the genus African spiny rats. The body is about 10 cm long, and the long tail has scales. Feed on grains and plants.

2. Giant gerbils: also known as yellow rats and large sand rats. The body length is 150-200mm, the tail is thick, slightly shorter than the body, there are hair bundles at the tail end, and the hair color of the head and back is pale sandy yellow, slightly shiny.

3. Short-eared gerbils: also known as short-eared rats, it is endemic to China. The short-eared gerbil is a small species in the gerbil subfamily, with an average body length of 96 mm, small ears, light sand-yellowish brown on the back of the body, and gray hair.

4. Long-clawed gerbils: also known as long-clawed gerbils, Mongolian gerbils or black-clawed Mongolian sand rats, yellow rats, sand rats, etc. The long-clawed gerbil is a small grassland animal, between the size of a large mouse and a small mouse, a small to medium-sized rodent, similar in appearance to a meridian gerbil.

5. Brown rat: also known as brown rat, big rat, white-tailed hanging, dung rat, ditch rat, is a kind of small and medium-sized rodent, male weight of about 133 grams, body length of 133 238mm, female weight of about 106 grams, body length of 127 188mm, tail length is significantly shorter than body length, tail hair is sparse.

Rats belongMammalia, rodents, rodents of the rodent family.

Rats are rodents of the mammal, rodent, and rodent families, commonly known as "rats, and the mode of reproduction is viviparous, and they are mammals."

The fastest reproducing and most survivable animals. There are about 480 species of rodents in the world, and their tracks can be seen both indoors and in the wild.

Rats can be divided into several subfamilies, most of which belong to the murine subfamily. The black mice, the brown rat and the small mus musculus of the genus Mouse have arrived all over the world with humans and are the most successful and common mammals.

Exterior features:

Mice are small in size and have a predominantly gray and brown body color. Upper and lower jaws.

Each has a pair of incisors, most of which are toothless. Rats mature sexually early, generally starting to reproduce a few months after birth. It can reproduce several times a year, and each time it gives birth to about 10 litters. It is highly adaptable, widely distributed and has many species.

There are rodent breedsGroundhogs, flying squirrel, chipmok, squirrel,Guinea pigs

1. Groundhogs

The marmot is the largest species of the squirrel family, the marmot.

The body is thick and fat, with a thick neck and a broad snout, small ears and thin eyes, thick and short limbs, and sharp claws.

Hard, pine tail short flattened. Because of the appearance of the meat and the peculiar cry that became popular on the Internet, many people now regard the marmot as a pet.

2. Flying squirrel

The flying squirrel is small, with large eyes, stubby limbs, and a flattened tail. They are very good at gliding, as long as they straighten their limbs, spread their leather wings, and flutter downward, they can glide up to about 50 meters.

3. Chipmuni

The chipmouse's coat color is black and white like that of a cow, and it is a popular pet breed in the United States. Not long ago, it entered China, but compared with foreign countries, the breeding rate of Chinese families is not particularly high.

4. Squirrels

Little squirrel. It has a long, fluffy tail and a well-proportioned and flexible body. According to the living environment, the squirrel family is divided into tree squirrels, ground squirrels and stone squirrels. Squirrels have always been popular with everyone because they are small, cute, and flexible, and now many people have squirrels as pets.

5. Guinea pigs

Guinea pigs tend to be larger among rats, generally measuring 20 to 25 cm in length. They have a relatively thick body, a large head, one-third of the body, short ears, no tail, and look simple and cute.