walrus
Walrus is a carnivorous mammal in the family Walrus, which has only one species and no subspecies. Walrus has a cylindrical body, thick and obese. Flat head, blunt snout. The forelimbs are relatively long, and the fingers are spread apart; The hind limbs can bend forward, allowing for crawling on land and swinging left and right while swimming. The tail is very short, hidden in the skin behind the buttocks. Male white upper canine teeth grow continuously throughout their lives, with their roots attached to the upper jaw and a very strong connection to the skull. The tips extend out of the mouth to form elephant like fangs, hence the name.
Horse skeleton
Horses are herbivorous animals belonging to the genus Malcoma in the order Quetziformes, and currently exist as two subspecies: domesticated horses and wild horses. Wild horses have upright and non drooping mane on their necks, extremely short forehead hair, long tail hair, and no distance hair on their limbs. In summer, the upper body is light brown, red brown, and reddish brown, while in winter, the back of the skin is light brown; Family horses are divided into heavy, small, and miniature horses according to their breeds; Jiama has long limbs, solid bones, well-developed tendons and ligaments, hard hooves, diverse fur colors, mostly chestnut, green, and black, well-developed sweat glands, and strong chewing power. With a developed system, it has a keen sense of hearing and smell, strong sensitivity to light, and can also see surrounding objects at night.
Huangxiangliu Monkey Skull
The Saguinusimperator, a species of marmoset in the family Tamarix, is a type of marmoset monkey. He has two long white beards and is accustomed to sitting quietly together to eat and rest. Another way of saying it is called "Emperor" is because it resembles Wilhelm II of Germany. The fur is mainly gray with yellow spots on the chest. Living in the dense Amazon rainforest. Residing in the upper canopy of tropical rainforests or tropical forest grasslands, rarely active on the ground. Eat fruits, nuts, and other plant-based foods, as well as insects, spiders, frogs, small lizards, and bird eggs.
Upper half skull of ferret
The ferret (Mustelapulourius furo) is a mammal belonging to the family Mustelidae in the order Carnivora. The body of a ferret is slightly slender, streamlined, with a round body and no sharp corners or flat areas. Distributed in southern Canada and Oklahoma and Kansas in the United States. Ferrets love to play and live in groups. They mostly sleep throughout the day and prefer quiet environments. They are highly alert to external stimuli. Ferrets lack sweat glands and are not suitable for high temperature environments. When frightened, they will empty their anal glands and secrete musk. Ferrets are carnivorous animals that mainly feed on small vertebrates such as mice and rabbits.
White Rhinoceros Skull
The white rhinoceros is a mammal belonging to the family Rhinocerotidae in the order Neodactyla. The body is round and robust, the skin is thick and smooth, and the surface of the body is approximately gray; The head has special features, but the incisors and canines have degenerated. The developed 7 pairs of cheek teeth have a very thick layer of limestone; There are two horns, one large and one small, one in front and one behind. The horns are not made of bone, but are derivatives of epithelial tissue, formed by the accumulation of keratin fibers. Distributed in southern and northeastern Africa, mainly active in the morning and evening, and rolling or resting in muddy water at other times; When the weather is cool, they lie under the shade of trees and take a nap, living alone or forming small groups. They are distributed in southern and northeastern Africa and feed on grass.
Otter skull
The marmot is a mammal belonging to the family Muridae in the order Rodentia of the class Mammalia; Also known as groundhog. The largest terrestrial and burrowing herbivorous and hibernating wild animal in the squirrel family. There are 14 subspecies worldwide, with 4 species in China. Distributed in Siberia and Mongolia of Russia, and also in Inner Mongolia of China. Resting in plateaus, meadows, foothills, and other areas, the lower edge of sunny slopes in plains and mountains is its high-density aggregation zone. Active during the day, with a large appetite, gnawing on a large amount of grass every day, enduring hunger and satiety, and preferring juicy feed with high water content, post rain grass, and dew grass. Likes to live in groups, easy to drive, does not harm people, is not heat-resistant, afraid of direct sunlight, and has strong disease resistance.
South American Half Skull Fossil
Hippidion, also known as South American horse, is a member of the horse family in the order of odd hooves. In the mid-19th century, some horse fossils were discovered on the grasslands of South America and handed over to British paleontologist Richard Owen. After restoration, Owen found that they were similar to modern horses, but smaller in size and were ponies, commonly translated as South American horses in China. The body size is not as big as a donkey, with a shoulder height of less than 1.4 meters and a weight of over 200 kilograms. The body shape of a South American horse is similar to that of a pony, with a short and sturdy body, short limbs, and a large head, making it look uncoordinated. Like modern horses, it is suitable for gnawing on hard grass rich in silicon.
Hamster skull
The Cricetinae subfamily is the smallest subfamily of the Cricetidae family, including only the Palearctic (Eastern Hemisphere) hamsters, which are small rodents. There are about 60 genera, with 3 genera and 9 species in China. Short and thick body shape; Short tail; Cheek pouch; Most types of skulls have no obvious ridges; The skull does not significantly enlarge; Listening to bubbles; Molar chewing mask with conical tooth tips. It inhabits a wide range of environments, including grasslands, deserts, semi deserts, farmland, and alpine grasslands. No hibernation habit; All of them are terrestrial species, mainly engaged in cave living, living by digging caves, with complex cave systems and specialized warehouses for storing food; Strong adaptability. Mainly feeds on plants, but also on animal carcasses.
Fossil skull of giant ape
The giant ape is an extinct genus of ape that lived in China, India, and Vietnam about 1 to 3 million years ago, and shares the same time frame and geographical location as several hominids. It is a type of ape that lives on the ground, similar to chimpanzees. It is likely the largest ape in the world, standing up to 3 meters tall and weighing 500 kilograms. The morphological characteristics of giant apes are between those of apes and humans. Giant apes have strong canine teeth and huge molars, with teeth about five times larger than modern human teeth. It is as easy as breaking a toothpick to bite through bamboo that is as thick as a bowl mouth. My favorite food is bamboo, and occasionally I also eat leaves and fruits.
Pseudo killer whale skull
Pseudo killer whales are mammals belonging to the dolphin family and the genus Pseudo killer whales. Living in tropical or temperate seas. The whole body is black or dark gray, with a slender body and a blunt and round head. Visiting coastal waters, but preferring to stay in deeper waters. Their diving depth can reach 2000 meters. Regularly organize large group activities. They feed on squid, but also catch hairtail, small sharks, as well as mackerel, black snapper, sea bass, and mackerel. Widely distributed in major oceans around the world except for the Arctic Ocean. Living in warm temperate to tropical waters around the world, it is found in the Bohai Sea, Yellow Sea, East China Sea, South China Sea, and Taiwan waters in China.
Elephant skeleton
Elephantidae is a mammal belonging to the family Elephantidae in the order Longnose, consisting of two genera, and is the largest terrestrial animal in the world. Its pillar like limbs and wide feet can stably support its massive body. A huge head with fan-shaped large ears and a long and elastic nose. Elephant ears have abundant blood vessels that can effectively dissipate heat. The elephant trunk, which combines the nose and upper lip, is coordinated by over 15000 muscles. Distributed in sub Saharan Africa and southeastern Asia, it inhabits various living environments, especially forests, grasslands, and river valleys. Living in groups, male beasts occasionally live alone. Eating plants, with a large appetite.
Armadillo skull
Armadillo is a mammal of the family Armadillidae in the order Heterodontoides. The bone armor covers the head, body, tail, and outer legs. The bone armor in the head, front half, and back half is separated, and the bone armor in the body forms a band shape, allowing for flexible movement; Having sparse hair in areas of the body without bone armor; There are strong claws on the front foot. The armadillo is named after the nine layered ribbon on its body. Distributed in the southern tip of South America, the Caribbean coast, and the Central American continent, it often inhabits dense shrubs, grasslands, wilderness, and has strong adaptability. It is a burrowing animal that lives underground, crouching during the day and emerging at night. Its vision is poor, but its sense of smell is excellent.
Upper skull of camel
Camel genus, belonging to the family Camelidae in the order Artiodactyla, is divided into two types based on morphology: Bactrian camels and Bactrian camels. Also known as "Tuotuo". Its head is small, the neck is thick and long, curved like a goose's neck, with double eyelids and thick long eyelashes, and the nose can be freely closed. It can reproduce and thrive on barren desert grasslands, and can still work without drinking water or eating forage for 5-7 days. Camels enjoy eating hard branches, tall shrubs, foul smelling grasses, and thorny plants. Has high economic value. Camel milk can be processed into dairy products such as yogurt, butter, white oil, cheese, dairy beverages, etc; Camel manure is one of the fuels used by herdsmen for heating. It is known as the 'ship of the desert'.
African Warthog Skull
African wart pig (Phacochoerus africanus): also known as a common wart pig, weighing between 50-75 kilograms, named after the warts under its eyes, which may help protect its eyes when digging for food. The head is relatively large, accounting for one-third of the body length. Having a mane on the back. Four fangs, long and sharp. Living alone or in groups, skilled at digging caves. They feed on green grass, moss, and tubers, and occasionally consume carrion. Enjoy mud baths. Has strong survival ability, is very adaptable to high temperatures and dry environments, and can go without drinking water for several months in a row. Be aggressive and have a developed sense of smell.
Camel skull
Camel deer is a mammal of the camel genus in the family Camelidae of the order Artiodactyla. Camel deer have a larger body size, generally ranging from 2-2.6 meters in length. The body resembles a camel, with four long legs similar to a camel. The shoulders are high, the head is large, the eyes are small, the face is long, the neck is short, the nose is enlarged and slightly drooping, and the upper lip is 5-6 centimeters longer than the lower lip. The hair color of the whole body is brown, the nose is thickened, and there is a chin pouch under the throat. Named after the hump shaped back hump and the horn shaped lower jaw. Typical subarctic coniferous forest animals, wandering in groups in the forest clearing, like to eat tender branches of plants, move quickly and agilely, and can run quickly. Long legs, able to walk freely even in thick snow
Fossil of upper half skull of upper dog
The largest species in the genus Canis, the Hydni, has a shoulder height of 1.2 meters and an estimated weight of 95-120 kilograms, which is twice the size of the North American gray wolf. The sturdy physique and tenacious collective strength made these terrifying animals a nightmare for many vegetarians in North America at that time. The emergence of the upper dog was due to the decline of the canine bear family, which allowed them to turn passive into active and deliver fatal blows to their opponents, thus replacing half of the dominance of canine bears. The Terridae subfamily not only suppressed the development of the Canidae family in North America, but also eliminated its own ancestral group, led by the Osborn dog, which can weigh up to 50 kilograms.
Fossil skull of woolly rhinoceros
The woolly rhinoceros is a mammal belonging to the family Rhinocerotidae in the order Neodactyla. The woolly rhinoceros is an extinct species of rhinoceros, named after its thick and dense fur covering its entire body. The woolly rhinoceros has strong bones, a long and large skull, and a head and neck that droops downwards; There is a rhinoceros horn on both the forehead and nose bones. The woolly rhinoceros has a body length of about 4 meters and a shoulder height of about 2 meters. It is covered with warm long hair and thick fur, and has a thick layer of fat under its skin. Like mammoths, they are all ice age animals that adapted to the cold climate and have traveled throughout the northern part of the Eurasian continent. They mainly inhabit the Eurasian grasslands and feed on shrubs and grasses grown in cold climates.
North American opossum skull
Didelphis virginiana, a North American opossum, is a mammal belonging to the suborder Theropoda, order Notothenioidei, family Notothenioidei, and genus Notothenioidei. The only marsupial that inhabits north of the Rio Grande in North America. It is a solitary and nocturnal animal, about the size of a domestic cat. Their ancestors began to evolve in South America and entered North America 3 million years ago through the Great Migration of North and South American organisms. They usually appear in nearby cities. It is the largest member of the opossum genus and the largest member of the opossum order. They are generally 38-51 centimeters long and weigh 4-6 kilograms. Omnivorous, eating different types of plants and animals.
Cloud leopard skull
Neofelisnebu is a carnivorous mammal belonging to the feline family Neofelisnebu. There are unique cloud like flower spots on the back and sides of the body; The primary color of the fur is uniform light blue to gray, with large cloud like patches on the sides of the body; Two intermittent black stripes extend from the spine to the base of the tail; There are 6 longitudinal lines on the neck, starting behind the ears; There are large black oval plaques on the limbs and ventral side; There are plaques on the crown of the head, white on the nose and snout, and dark stripes extending from the eyes and corners of the mouth to the side of the head. It inhabits primitive evergreen tropical rainforests, but is also found in secondary forests and logging forests. Prey small mammals and birds, and attack chicken coops. Night walking, living alone.
Upper skull of desert cotton tailed rabbit
Sylvilagusauduboni: a mammal belonging to the genus Sylvilagusauduboni in the family Actinidae. Body length 30-38 centimeters, ear length 7 centimeters, weight 0.85-1 kilograms. Females are slightly larger than males. The fur is generally light brown, brown or gray; The lower abdomen of the body turns white; The throat often has an orange brown stripe; The tail wraps around and looks like a cotton ball. The habitat is dry grasslands, shrubs, coastal areas, and juniper forests. Usually inactive at noon, foraging in the early morning and evening. It is a herbivore that feeds on various plants, including grass, shrubs, leaves, and cacti.
Fossil skull of saber toothed tiger
Thylacosmilus is an extinct marsupial mammal that lived in prehistoric South America. It was a large terrestrial carnivore that once lived and competed with the saber toothed tiger. But the saber toothed tiger is actually a marsupial mammal, not belonging to the feline family, and even not to the carnivorous order. It only resembles the saber toothed tiger in appearance due to convergent evolution. Living in the Quaternary period of the Tertiary period. The body size is not very large, the largest of which is equivalent to the size of a jaguar and four times that of a pack wolf. He was one of the larger meat beasts in the southern cuisine at that time, with developed sword teeth and a strong body.
Grey whale skull
The gray whale (scientific name: Eschrichtiusrobustus) belongs to the family of gray whales in the suborder of baleen whales of the order Artiodactyla. It has a larger body circumference than species in the family of baleen whales, but smaller than the humpback whale; Its adult length is 10 to 15 meters (female whales are slightly larger than male whales), and its maximum weight exceeds 35 tons. The body is spindle shaped, with a thick and chubby trunk, thickest near the fins, and gradually narrows towards the tail. Without dorsal fins, there are 8-15 low peaks along the posterior one-third of the spine, with the first peak being the largest and decreasing towards the tail. Mainly feeds on planktonic small crustaceans, herring eggs, and other group fish. But they do not feed during their southward migration.
Negative rat skull
Didelphinae is a general term for mammals in the family Didelphinae, belonging to the marsupial order, and is a small to medium-sized mammal. Due to the fact that female opossums can carry their young around and run around, they are named "opossums". Has the largest number of teeth among living land mammals. Nocturnal, gentle temperament, often goes out at night, preys on small invertebrates such as insects and snails, and also eats some plant-based food. When threatened or injured, opossums will roar (especially males), pretend to be dead, and mimic the appearance and scent of sick or dead animals. He is known as the "brake man" because he suddenly stands still while running, confusing predators, and then suddenly jumps up to escape
Macaque skull
Macaca (scientific name: Macaca) is a mammal belonging to the genus Macaca in the primate family. The body is thick and robust, with a smaller body size compared to other members of the same genus; Both hands and feet have 5 fingers and toes, with flat nails; The limbs are basically of equal length, and the thumb can be relative to the other four fingers; The distance between the eyes is narrow, and stereoscopic vision is developed, which can distinguish colors. It inhabits broad-leaved forests in tropical, subtropical, and warm temperate regions, living in clusters of 30-50 individuals. Omnivorous, feeding on wild fruits, leaves, insects, and also stealing crops such as corn and sugarcane. It is a relatively ancient primate and a rare animal in the Mulao ethnic region.
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