mammals

Castor,Beaver, nutria

Features：The body is obese, with no obvious difference between males and females. The head is short and blunt, the eyes are small, the neck is short, the limbs are short and wide, the forelimbs are short, and the tail is large and flat.

There are only two species of beavers in the world. The other is the American beaver, which is distributed in Canada and Alaska, USA. Beavers are highly adapted to aquatic life and can move underwater for a long time. They have the habit of building dams with branches and trunks and nesting next to...

Dryomys nitedula,Dormouse,Dyromys milleri,Mus nitedula Pallas,Eliomys angelus

Features：The body is medium in size, with a dirty grey tail, slightly darker than the back of the body. The tip of the tail is slightly white, the feet are white, and the eye sockets are black.

There are 9 genera and 28 species of forest dormouse in the world. They belong to 3 subfamilies. There are 2 genera and 2 species in China, belonging to the forest dormouse subfamily (Leithiinae). Dormouse rodents are a group of very special animals. Most of them are like small squirrels, with soft...

Aeretes melanopterus,North Chinese flying squirrel,Black-winged flying squirrel

Features：A medium-sized flying squirrel with a flat, rounded tail that is almost as long as or longer than its body.

Grooved-toothed flying squirrels like to build nests in tree holes of tall trees. The nests are built in dead tree holes, with the hole openings ranging from 5 to 10 meters from the ground. The hole openings are small, about 10 cm, and the hole depth is about 50 cm. The nests are made of birch bark...

Pteromys volans,Siberian Flying Squirrel,Flying squirrel, flying squirrel, flying tiger, small flying squirrel

Features：It is small and very flexible, with short and thick limbs, a flat tail, and two colors of fur in winter and summer: brown-gray in summer and yellow-gray in winter.

Flying squirrels do not hibernate. They are nocturnal and are active after dusk, but can occasionally be seen during the day. When disturbed during the day, they slowly crawl to the entrance of their caves. Some of them jump out and glide downwards. After landing, they quickly climb up the nearest t...

Petaurista xanthotis , Highland Flying Squirrel, Yellow-eared Flying Squirrel

Features：The head is short and round, the tail is fluffy, thick and rudder-shaped, and its length is generally longer than the body.

Gray flying squirrels are nocturnal and active at dawn and dusk. They live in subalpine coniferous forests or mixed coniferous and broad-leaved forests at an altitude of about 3,000 meters. They have strong gliding ability and usually build nests in tree holes of tall trees or rock holes higher than...

Petaurista albiventer,Brown-footed flying squirrel, red-backed flying squirrel, flying fox, flying mouse

Features：Its tail is very thin and longer than its body. It has a cat-like body but a fox-like head and sharp claws and fangs.

The chestnut-backed flying squirrel is a species of Chinese flying squirrel. The chestnut-backed flying squirrel, also known as the red-backed flying squirrel or the brown-footed flying squirrel, is a rare wild animal with important economic and scientific research value announced by the state in 20...

Petaurista magnificus,Magnificent Flying Squirrel,Beautiful flying squirrel, Beautiful flying squirrel, Hao's flying squirrel

Features：It is large in size, with a thick and round tail that is no longer than the body.

The chestnut brown flying squirrel mainly lives in the mountain evergreen broad-leaved forest belt below 2500m above sea level, where the vegetation consists of Castanopsis, Carle, Oak and other tree species; the climate of its habitat is warm, and the frost-free period is generally more than 200 da...

Petaurista caniceps, small flying squirrel, small flying squirrel, flying squirrel, flying tiger

Features：The back hair is dark brown, the belly hair is deep orange-red, the tail is longer than the body, and the tail hair is fluffy.

The gray-headed flying squirrel is medium-sized, arboreal, and usually moves alone. It is a nocturnal animal, spending most of its time in trees, sleeping in tree holes during the day, and coming out at night to find food. Young leaves, seeds, fruits and flower buds are its favorites. Flying squirre...

Petaurista alborufus,Red-and-white Giant,Flying fox, pine cat, white-faced flying squirrel, white-headed flying squirrel, white-fronted flying squirrel

Features：It has a short and round head, large eyes, chestnut eye rims, particularly large pupils, red and white fur, and a tail that is almost as long as the body.

Red and white flying squirrels are large flying squirrels with a body shape very similar to that of squirrels. They live in forest areas on hillsides or in limestone shelters at an altitude of about 1,000 meters, mainly in dense forests of tall trees such as poplars, walnuts, and birches.During the...

Trogopterus xanthipes,Orange-footed flying squirrel, yellow-footed flying squirrel, cuckoo bird, cuckoo bug, cuckoo bug, magpie

Features：It has a medium body size, a slightly flat tail that is as long as the body, a round head with big eyes, a short snout, and well-developed, round and wide ears.

The flying squirrel is a forest animal endemic to China. It is slightly larger than the red-bellied squirrel and lives mostly in mountain cypress forests at an altitude of about 1,200 meters. It often builds nests in steep caves, cracks in rocks, and tree holes. The nests are relatively small and ar...

Belomys pearsonii Gray,Hairy-footed Flying Squirrel,Brown-eared mouse, hairy-legged mouse

Features：It is a larger species among the small flying squirrels. There is a notch on the dorsal edge of the ear and a tuft of long hair on the front and back of the ear stem.

The hairy-eared flying squirrel is a tropical small flying squirrel that usually lives in pairs at night and does not hibernate. It comes out of its hole at dusk to look for food. It mainly feeds on the tender branches, leaves, flower buds and fruits of various plants, such as banyan fruit and mango...

Marmota sibirica,,Marmota bobak,Bobak Marmot,Siberian marmot, steppe marmot, Tarbagan (Mongolian)

Features：It has a large and sturdy body, short round ears and a short tail, and its fur is brown or yellowish brown.

The Mongolian marmot is a rodent, Marmota genus animal. There are two color types, one is brown and the other is yellow-brown; it lives in mountainous areas above 1500m above sea level or hilly grassland areas above 600m, avoiding deserts, but occasionally seen in the marginal areas where grasslands...

Marmota himalayana,Hara, Snow Pig

Features：The body is brownish yellow with scattered black markings, the body is stout and fat, and the tail is short.

The Himalayan marmot is a large ground-dwelling rodent mammal of the genus Marmot. It widely inhabits the meadow grasslands of the Tibetan Plateau and alpine grasslands at 1500-4500m. Their numbers do not vary significantly depending on the different vegetation communities on the meadow grasslands....

Marmota caudata,Long-tailed Marmot,Red marmot, Marmot

Features：The tail is the longest among all marmots, exceeding half the length of the body. The fur on the back and sides is brown-red, so it is also called the red marmot.

The long-tailed marmot is a large terrestrial rodent of the Sciuridae family and the genus Marmota. It is slightly smaller than the gray marmot, and has the longest tail among all species of the genus Marmota, averaging about 38% or half of the body length. The fur is long and fluffy, rough and less...

Marmota baibacina,Altai Marmot,Tianshan marmot, Altai marmot

Features：It has a short and thick body, long and soft fur, and the fur on the back is sandy yellow or sandy brown.

The gray marmot (scientific name: Marmota baibacina), also known as the Tianshan marmot and the Altai marmot, is a large terrestrial rodent mammal belonging to the order Rodentia, the family Sciuridae, and the genus Marmota. The gray marmot is a typical grassland rodent, mainly inhabiting places wit...

Spermophilus relictus,Tien Shan Ground Squirrel,Yellow rat

Features：Its body size is similar to that of the red-cheeked yellow squirrel, but its tail is longer than that of the red-cheeked yellow squirrel.

The Tianshan yellow squirrel is of medium size and has a long tail. It mainly inhabits the gentle slopes of the hills in front of the mountains, small basins between mountains, and relatively dry areas on both sides of the river valley in the mountain grasslands at an altitude of 1000-1500 meters. O...

Spermophilus dauricus,Yellow mouse, Mongolian yellow mouse, prairie yellow mouse, bean mouse, big-eyed thief

Features：The body is fat, the tail is short, and the back hair is brown. The age of the mouse is determined by body length and weight. The older the mouse is, the longer the incisors are, the darker the color, and the longer the body length is.

Daurian ground squirrel is a group of scattered animals, diurnal, one of the representative species of the northern grassland, but occasionally go out of the hole to forage at night. The activity pattern has seasonal changes. The time of ground activity of ground squirrels varies with the season. Us...

Spermophilus undulatus，Long-tailed Ground Squirrel，Bean rat, big-eyed thief

Features：The long-tailed yellow squirrel is large in size, with the longest tail and largest body in the genus Yellow squirrel. It has long black claws, short ears, gray-brown back in summer, and its belly is mostly brown or rusty brown.

The long-tailed yellow squirrel is an animal of the Sciuridae family and the genus Squirrel. It mainly inhabits high mountains at 1700-3000m and relatively humid piedmont hills, forest edges and river valleys. The vegetation types are mostly mountain grasslands, forest grasslands and subalpine meado...

Spermophilus erythrogenys,Red-cheeked Ground Squirrel,Pale-tailed yellow squirrel

Features：The back of the body from the top of the head to the base of the tail is sandy yellow, or grayish yellow with gray-black tones.

Red-cheeked yellow squirrel is an animal of the Sciuridae family and the genus Squirrel. It inhabits low mountain grasslands, piedmont hilly grasslands and semi-desert plains. In some places, it can rise along the river valley to the mountain grasslands of the mid-mountain belt at an altitude of 1,5...

Spermophilus alaschanicus Buchner, field mouse, Daurian ground mouse, Mongolian ground mouse, prairie ground mouse, big-eyed thief, bean mouse

Features：The eyes are large and protruding, the external ears are degenerate, the limbs are balanced, the front claws are sharp, and the middle finger is particularly developed, which is a useful tool for digging holes.

The Alashan yellow rat was originally listed as a subspecies of the Daurian yellow rat, and became an independent valid species in 1975. It lives in grasslands and semi-desert environments. It is diurnal. It feeds on the roots, stems, leaves and seeds of herbaceous plants, and also eats insects. It...

Tamias sibiricus, birch mouse, five-browed squirrel, flower civet stick, chipmunk

Features：There are several parallel longitudinal stripes of light and dark on the back of the body.

Chipmunks belong to the genus Chipmunk of the family Sciuridae. They are named for the several light and dark parallel vertical stripes on their backs. They are medium-sized, with long tails and long, fluffy, broom-like tail hairs that extend to both sides. They have slightly long limbs, and their e...