Polar bear (ursus maritimus). Types of bears Why is a bear classified as an animal?

The bear is a predatory animal, which is the largest in the world. The length of its body reaches approximately three meters, and its mass is approximately 800. The bear has a huge body, strong paws with claws, a short tail, and a large head.

Alexander Sergeevich Pushkin is the first Russian writer of various poems, fairy tales, and riddles. Pushkin's poems became the main point to which the entire Russian people listened. Pushkin’s work contains many works of various genres, but he paid great attention to lyric poetry.

The Bears brown look They live in the taiga, in mountain forests and near fertile meadows near water. The fur of brown bears can be of various colors, ranging from brown to dark brown. By old age, bears turn gray and become grey. Species such as the Malayan bear, white-breasted bear, sloth bear, black bear and polar bear are very common. All these types of bears are mostly found alone, but sometimes in groups. They are active at night, but polar bears are active only during the day. Bears rest mainly in caves and pits.


Almost all bears are omnivores. But species such as the polar bear eat only the meat of mammals. Brown bears have a varied diet, which changes due to the changing seasons. After the bear wakes up, its diet includes ants, young shoots and dead animals. The bear's diet also includes various ripe berries and even nuts. Bears eat a lot, in order to feed it they need a lot of food, which is processed into fat necessary for winter living. When the year is not productive, bears eat crops of oats, corn, and also eat domestic animals.


Many bears lead a quiet life throughout the year. Brown bears and white-breasted bears hibernate during the winter. Among polar bears, only female bears that bear cubs hibernate. The bears' den is very clean and emits a pleasant smell.

Updated: 02/24/2015

To the question: Are bears herbivores or predators asked by the author? Elena Yakshigulova the best answer is Bears are omnivores. They eat grass, berries, mushrooms, they will not refuse fish, especially meat, they put on fat - they eat everything until they are completely stupefied.
But pandas only eat bamboo, and polar bears prefer the fat of seals and seals.

Answer from Anastasia[newbie]
Predators))

Answer from CupalCA[guru]
predators, of course

Answer from Artyom Kirillov[master]
omnivores!!

Answer from Anyushka Selivanova[active]
predators, but when they are hungry they can pick raspberries and chew grass =)

Answer from Anton Schaefer[newbie]
The bear is an omnivore like humans

Answer from Nastyusha Ropcea[master]
omnivores

Answer from Natasha[guru]
Bears (lat. Ursidae) are a family of mammals from the order Carnivora. They differ from other representatives of canids in having a stockier physique. Bears are omnivores, climb and swim well, run fast, and can stand and walk short distances on their hind legs. They have a short tail, long and thick fur, and excellent sense of smell and hearing. They hunt in the evening or at dawn. They are usually afraid of humans, but can be dangerous in areas where they are accustomed to people, especially polar bears and grizzly bears. Immune to bee stings. In nature natural enemies almost none.

Answer from Marina Mirutenko[guru]

Answer from Olesya Yudintseva (Yumasheva)[newbie]
100% carnivores-predators, because they eat meat and hunt. Only carnivores can hunt and eat meat, first of all, and only then fish, mushrooms, nuts, honey, berries, grass, roots. But herbivores cannot eat meat.

Answer from Lyudmila Valentinovna[guru]
polar bear, grizzly bear, spectacled bear and many more representatives of the bear family eat - forest berries, nuts, honey, rodents, carrion, large mammals, other plants. FROM THE ORDER THEY ARE PREDATORS. but the koala, which belongs to the marsupial bear family, is a herbivorous bear.

Answer from Iodionov Sergey[guru]
the bear is omnivorous. he eats almost everything he can eat. V summer period plant foods predominate, most animal protein in the bear's diet is small animals. rodents. insects. The bear engages in direct hunting, especially hunting large animals, only in the absence of more accessible and less “dangerous” food

Answer from Neuvind Storm of the Fiords[guru]
Bears are omnivores. In principle, they eat plant food all the time, and animal food only when it comes into their paws

Answer from KOMOV MIKHAIL[guru]
Browns are omnivores. Whites are predators

Answer from Alesya Benitsevich[newbie]
omnivorous

Answer from Marat Timirgalin[active]
omnivorous

Answer from Jena Slučić[newbie]
Differently

Answer from Gulnara Abulkhanova[newbie]
Anatomically they are predators. Teeth, this and that. And he cannot live on plant foods all the time. But in last years In many regions, bears are increasingly using plant foods. In this regard, its numbers are growing; in some places there are significantly more of them than wolves. That is, he seems to be falling off the top of the food pyramid.

Bears or bears (lat. Ursidae) are a family that includes mammals from the order of predatory animals. The difference between all bears and other canine-like animals is their stockier and well-developed physique.

Description of the bear

All mammals from the order Carnivores originate from a group of marten-like primitive predators known as miacidae, which lived in the Paleocene and Eocene. All bears belong to the fairly numerous suborder Caniformia. It is assumed that all well-known representatives of this suborder descended from one dog-like ancestor, common to all species of such animals.

Relative to other families from the order of predatory animals, bears are animals with the greatest uniformity in appearance, size, and are also similar in many features in internal structure. All bears are among the largest representatives of modern terrestrial predatory animals. The body length of an adult polar bear reaches three meters with a weight ranging from 720-890 kg, and the Malayan bear is one of the smallest representatives of the family, and its length does not exceed one and a half meters with a body weight of 27-65 kg.

Appearance, colors

Male bears are approximately 10-20% larger than females, and in a polar bear such figures can be even 150% or more. The animal's fur has a developed and fairly coarse undercoat. The tall, sometimes shaggy type of hair in most species has a pronounced density, and the fur of the Malayan bear is low and quite sparse.

The fur color is uniform, from coal-black to whitish. The exception is, which has a characteristic contrasting black and white color. There may be light markings in the chest area or around the eyes. Some species are characterized by individual and so-called geographical variability in fur color. Bears exhibit marked seasonal dimorphism, expressed by changes in height and density of fur.

All representatives of the Bear family are distinguished by their stocky and powerful bodies, often with fairly high and pronounced withers. Also characteristic are strong and well-developed, five-fingered paws with large non-retractable claws. The claws are controlled by powerful muscles, thanks to which animals climb trees, dig the ground, and easily tear apart prey. The length of grizzly claws reaches 13-15 cm. The gait of a predatory animal is plantigrade, characteristically shuffling. The giant panda has a sixth additional “finger” on its front paws, which is an outgrowth of the sesamoid radius bone.

The tail part is very short, almost invisible under the fur covering. The exception is the giant panda, which has a fairly long and clearly visible tail. Any bear has relatively small eyes, a large head located on a thick and, as a rule, short neck. The skull is large, most often with an elongated facial part and highly developed ridges.

This is interesting! Bears have a highly developed sense of smell, and in some species it is quite comparable to a dog’s sense of smell, but the vision and hearing of such numerous and large predators are an order of magnitude weaker.

The zygomatic arches are most often slightly spaced in different directions, and the jaws are powerful, providing very high levels of bite force. All representatives of the Bear family are characterized by the presence of large fangs and incisors, and the remaining teeth may be partially reduced, but their appearance and structure most often depend on the type of food. The total number of teeth can vary between 32-42 pieces. The presence of individual or age-related variability in the dental system is often observed.

Character and lifestyle

Bears are typical predators leading a solitary lifestyle, so such animals prefer to meet each other solely for the purpose of mating. Males, as a rule, behave aggressively and are capable of killing cubs that are near the female for a long time. Representatives of the Bear family are distinguished by their good adaptability to a variety of living conditions, therefore they are able to inhabit high mountain areas, forest zones, arctic ice and steppe, and the main differences lie in the way of nutrition and lifestyle.

A significant portion of bear species live in lowland and mountain areas. forest areas temperate or tropical latitudes. The predator is somewhat less common in high mountain areas without dense vegetation. Some species are characterized by a clear connection to aquatic environment, including mountain or forest streams, rivers and sea ​​coasts. The Arctic, as well as vast expanses

This is interesting! Arctic Ocean - habitat habitat of polar bears, and the usual lifestyle brown bear associated with subtropical forests, taiga, steppes and tundra, desert areas.

Most bears fall into the category of terrestrial carnivores, but polar bears are semi-aquatic members of the family. Malayan bears are typical adherents of a semi-arboreal lifestyle, therefore they are able to climb trees perfectly and create a shelter for themselves or the so-called “nest”. Some species of bears choose holes near the root system of trees and crevices of sufficient size as their habitat.

As a rule, representatives of the Bear family and the Predatory order lead night image life, so they rarely go hunting in the daytime. However, polar bears may be considered an exception to such general rules. Predatory mammals leading a solitary lifestyle unite during the “ mating games"and mating, as well as for raising their offspring. Among other things, groups of such animals are observed at common watering places and traditional feeding areas.

How long do bears live?

The average life expectancy of bears in nature can vary depending on the species characteristics of this carnivorous mammal:

• Spectacled bears – two decades;
• Apennine brown bears - up to twenty years;
• Tien Shan brown bears - up to twenty years or a quarter of a century;
• Polar polar bears - just over a quarter of a century;
• Gubachi - just under twenty years old.

In captivity, the average life expectancy of a predatory mammal, as a rule, is noticeably longer. For example, brown bears can live in captivity for more than 40-45 years.

Types of bears

Area, distribution

Spectacled bears are the only representatives of the Bear family that inhabit South America, where the predator prefers the mountain forests of Venezuela and Ecuador, Colombia and Peru, as well as Bolivia and Panama. - inhabitant of the Lena, Kolyma and Anadyr river basins, most of Eastern Siberia and Stanovoy Range, Northern Mongolia, some regions of China and the border territory of Eastern Kazakhstan.

Grizzly bears are found primarily in western Canada and Alaska, with a small number remaining in continental America, including Montana and northwestern part Washington. Tien Shan brown bears are found on the Tien Shan ridges, as well as in the Dzungarian Alatau, which has peripheral mountain ranges, and Mazalai are found in the desert mountains of Tsagan-Bogdo and Atas-Bogdo, where sparse bushes and drainage dry riverbeds are located.

Polar bears are distributed circumpolarly, and live in the circumpolar regions in the northern hemisphere of our planet. White-breasted Himalayan bears prefer hilly and mountain forests of Iran and Afghanistan, Pakistan and the Himalayas, all the way to Japan and Korea. Representatives of the species in the Himalayas in summer rise to a height of three and even four thousand meters, and with the onset of cold weather they descend to the mountain foot.

Sponge whales live mainly in the tropics and subtropical forests India and Pakistan, in Sri Lanka and Nepal, as well as in Bangladesh and Bhutan. Biruangs are distributed from the northeastern part of India to Indonesia, including Sumatra and Kalimantan, and the subspecies Helarctos malayanus euryspilus inhabits the island of Borneo.

Bears in the planet's ecosystem

All representatives of the Bear family, due to their diet and impressive size, have a very noticeable impact on the fauna and flora in their habitats. The polar and brown bear species are involved in regulating the total number of ungulates and other animals.

All herbivorous bear species contribute to the active distribution of seeds of many plants. Polar bears are often accompanied by Arctic foxes, which eat their prey.

Bear diet

Spectacled bears are the most herbivorous in the family, and their main diet includes grassy shoots, fruits and rhizomes of plants, corn crops, and sometimes insects in the form of ants or termites. Important role The diet of the Siberian bear is devoted to fish, and Kodiaks are omnivores, feeding on both herbaceous plants, berries and roots, and meat foods, including fish and all kinds of carrion.

Pika-eating bears or Tibetan brown bears feed mainly on herbaceous plants, as well as pikas, which is how they got their name. The main prey of polar bears is ringed seals, bearded seals, walruses and many other marine animals. The predator does not disdain carrion, willingly feeds on dead fish, eggs and chicks, and can eat grass and all kinds of seaweed, and in inhabited areas it looks for food in numerous garbage dumps.

The diet of white-breasted or Himalayan bears is 80-85% made up of products of plant origin, but the predator is capable of eating ants and other insects, as well as highly nutritious mollusks and even frogs. Sloth bears, like , are adapted to eating primarily colonial insects, including termites and ants. All biruangs are omnivores, but primarily feed on insects, including bees and termites, as well as fruits and shoots, earthworms and plant rhizomes.

Omnivory is a way of obtaining energy and nutrients by consuming food of animal and plant origin. Animals with this diet are considered “omnivores.” Most people, with the exception of vegans, who completely exclude animal products, are also omnivores.

Meaning of the term

The word "omnivore" comes from the Latin words omnis"everything" and vora, which means "to devour or swallow" - so omnivory means "devouring everything." It's pretty precise definition, since omnivores have different food sources, including algae, plants, fungi and other animals. Some animals can be omnivores throughout their lives, while others at certain stages (for example, some sea ​​turtles).

Advantages and disadvantages

The advantage of omnivory is the ability to find food in a wide variety of places and environmental conditions. For example, if it is not possible to eat a certain food, an omnivore can quite easily change its diet. Some omnivores are also scavengers, meaning they feed on dead animals or plants, which further increases their feeding capabilities.

Omnivores have to find their own food, and because they have such a varied diet, their ways of obtaining food are not as specialized as those of carnivores or herbivores. For example, carnivores have sharp teeth for tearing and capturing prey, while herbivores have flatter teeth adapted for crushing vegetation. Omnivores can have a mixture of both types of teeth (for example, our molars and incisors).

The disadvantages of omnivory can be clearly seen in the example of some species. marine organisms, which are likely to invade non-native habitats. This has cascading effects on native species, which may be persecuted or displaced by invasive omnivores. An example is the Asian shore crab, native to northwestern countries Pacific Ocean. It was introduced to Europe and the USA, but the food and habitat do not correspond to it, and this animal causes significant damage to existing ones.

Examples of omnivores

Mammals

• Pig: This is probably the most famous representative omnivores, and currently this type is popular among people - it is contained as pet or raised for meat.
• Bear: These animals are one of the most opportunistic creatures as they adapt well to different conditions. If there is a lot of fruit in the area where they live, then bears will eat them. If instead there is a river with a lot of fish, the bear will catch them all day. The panda, a member of the bear family, is also considered an omnivore, as it can supplement its bamboo diet with rodents or small birds.
  The only exception is the carnivorous polar bear, perhaps due to the lack of plant food in its natural Arctic habitat.
• Hedgehog: Many people think that the hedgehog eats insects and small animals, but these little creatures like to eat fruits and vegetables occasionally.
• Other omnivorous mammals: raccoons, mice, squirrels, sloths, chipmunks, skunks, chimpanzees, and, of course, humans.

Birds

• Crows: As shown in many films, they are always on the prowl for animal remains, but aside from dead carcasses, they also tend to eat vegetables when other food sources are unavailable.
• Chickens: They're the exact opposite small child, because they absorb everything. Whatever you give her, the chicken will swallow it without a second's hesitation.
• Ostriches: Although their main diet includes vegetables and plants, these animals are lovers of all kinds of insects.
• Magpies: These birds will also eat almost anything, although they tend to become food for dogs and parrots.

Marine organisms

• Many types of crabs (including blue crabs, ghost crabs and Asian shore crabs);
• Horseshoe crabs;
• Lobsters (for example, American lobster, real lobster);
• Some sea turtles are olive turtles and the Australian green turtle are omnivores. Green turtles are herbivores as adults, but the hatchlings are omnivores. Loggerhead turtles become carnivores as adults, but they are omnivores when still young.
• Common Littorines - These small snails feed primarily on algae, but may also eat small animals (such as barnacle larvae).
• Some types of zooplankton;
• Sharks are generally carnivores, although whale sharks and basking sharks can be considered omnivores as they are filter feeders and feed on plankton. When they swim through the water with their eyes open huge mouths, the plankton they consume can include both plant and animal organisms. Mussels and barnacles can also be considered omnivores because they filter small organisms (which can contain both phytoplankton and zooplankton) from the water.

Omnivores and levels of the food chain

In the marine (and terrestrial) world there are producers and consumers. are organisms that produce their own food. These include plants, algae and some types of bacteria. Producers are at the base.

These are organisms that must consume other organisms in order to survive. All animals, including omnivores, are consumers.

IN the food chain There are trophic levels, which are the nutritional levels of animals and plants. The first trophic level includes producers because they produce food that feeds the rest of the food chain. The second trophic level includes herbivores, which feed on producers. At the third trophic level there are omnivorous and carnivorous organisms.

The bear is the most large predator on the ground. This animal belongs to the class mammals, order carnivores, family bears, genus bears ( Ursus). The bear appeared on the planet about 6 million years ago and has always been a symbol of power and strength.

Bear - description, characteristics, structure. What does a bear look like?

Depending on the species, the body length of a predator can vary from 1.2 to 3 meters, and the weight of a bear varies from 40 kg to a ton. The body of these animals is large, stocky, with a thick, short neck and big head. Powerful jaws make it easy to chew both plant and meat foods. The limbs are rather short and slightly curved. Therefore, the bear walks, swaying from side to side, and rests on its entire foot. The speed of a bear in moments of danger can reach 50 km/h. With the help of large and sharp claws, these animals extract food from the ground, tear apart prey and climb trees. Many species of bears are good swimmers. The polar bear has a special membrane between its toes for this purpose. The lifespan of a bear can reach 45 years.

Bears are no different sharp vision and well-developed hearing. This is compensated by an excellent sense of smell. Sometimes animals stand on their hind legs to use their sense of smell to obtain information about their surroundings.

Thick bear fur covering the body has a different color: from reddish-brown to black, white in polar bears or black and white in pandas. Species with dark fur turn gray and gray in old age.

Does a bear have a tail?

Yes, but only the giant panda has a noticeable tail. In other species it is short and almost indistinguishable in the fur.

Types of bears, names and photos

In the bear family, zoologists distinguish 8 species of bears, which are divided into many different subspecies:

• Brown bear (common bear) (Ursus arctos)

The appearance of a predator of this species is typical for all representatives of the bear family: a powerful body, rather high at the withers, a massive head with rather small ears and eyes, a short, barely noticeable tail, and large paws with very powerful claws. The body of a brown bear is covered with thick fur with brownish, dark gray, and reddish colors, which vary depending on the habitat of the “clubfoot”. Baby bear cubs often have large light tan marks on the chest or neck area, although these marks disappear with age.

The distribution range of the brown bear is wide: it is found in the mountain systems of the Alps and on the Apennine Peninsula, common in Finland and the Carpathians, and feels comfortable in Scandinavia, Asia, China, the northwestern United States and Russian forests.

• Polar (white) bear (Ursus maritimus)

Is the most major representative family: the length of its body often reaches 3 meters, and its weight can exceed one ton. U Long neck and a slightly flattened head - this distinguishes it from its counterparts of other species. The color of the bear’s fur is from boiling white to slightly yellowish; the hairs are hollow inside, so they give the bear’s “fur coat” excellent thermal insulation properties. The soles of the paws are densely “lined” with tufts of coarse wool, which allows to the polar bear It is easy to move on the ice cover without slipping. There is a membrane between the toes that facilitates the swimming process. The habitat of this bear species is the circumpolar regions of the Northern Hemisphere.

• Baribal (black bear) (Ursus americanus)

The bear is a little similar to its brown relative, but differs from it in its smaller size and blue-black fur. The length of an adult baribal does not exceed two meters, and female bears are even smaller - their body is usually 1.5 meters long. pointed muzzle, long paws, ending with rather short feet - this is what makes this representative of bears remarkable. By the way, baribals can become black only in the third year of life, receiving a gray or brownish color at birth. The black bear's habitat is vast: from the vastness of Alaska to the territories of Canada and hot Mexico.

• Malayan bear (biruang) (Helarctos malayanus)

The most “miniature” species among its bear counterparts: its length does not exceed 1.3-1.5 meters, and the height at the withers is slightly more than half a meter. This type of bear has a stocky build, a short, rather wide muzzle with small round ears. The paws of the Malayan bear are high, while the large, long feet with huge claws look a little disproportionate. The body is covered with short and very tough black-brown fur; the animal’s chest is “decorated” with a white-red spot. The Malayan bear lives in the southern regions of China, Thailand and Indonesia.

• White-breasted (Himalayan) bear (Ursus thibetanus)

Slim physique Himalayan bear not too different large sizes- this representative of the family is two times smaller than its brown relative: the male has a length of 1.5-1.7 meters, while the height at the withers is only 75-80 cm, the females are even smaller. The bear's body, covered with shiny and silky fur of dark brown or black color, is crowned by a head with a pointed muzzle and large round ears. A mandatory “attribute” of the Himalayan bear’s appearance is a spectacular white or yellowish spot on the chest. This type of bear lives in Iran and Afghanistan, is found in the mountainous regions of the Himalayas, in Korea, Vietnam, China and Japan, and feels at ease in the open spaces Khabarovsk Territory and in the south of Yakutia.

• Spectacled bear (Tremarctos ornatus)

A medium-sized predator - length 1.5-1.8 meters, height at the withers from 70 to 80 cm. The muzzle is short, not too wide. The fur of the spectacled bear is shaggy, has a black or black-brown tint, and there are always white-yellow rings around the eyes, smoothly turning into a whitish “collar” of fur on the animal’s neck. The habitat of this type of bear is the country South America: Colombia and Bolivia, Peru and Ecuador, Venezuela and Panama.

• Gubach (Melursus ursinus)

A predator with a body length of up to 1.8 meters, height at the withers varies from 65 to 90 centimeters, females are approximately 30% smaller than males in both respects. The body of the sloth fish is massive, the head is large, with a flat forehead and an overly elongated muzzle, which ends in mobile, completely hairless, protruding lips. The bear's fur is long, usually black or dirty brown in color, and in the area of ​​the animal's neck it often forms something like a shaggy mane. The sloth bear's chest has a light spot. The habitat of this type of bear is India, some areas of Pakistan, Bhutan, the territory of Bangladesh and Nepal.

• Big panda (bamboo bear) ( Ailuropoda melanoleuca)

This type of bear has a massive, squat body, which is covered with dense, thick fur. black and white color. The paws are short, thick, with sharp claws and completely hairless pads: this allows pandas to firmly hold smooth and slippery bamboo stems. The structure of the front paws of these bears is very unusually developed: five ordinary fingers are complemented by a large sixth, although it is not a real finger, but a modified bone. Such amazing paws enable the panda to easily handle the thinnest bamboo shoots. The bamboo bear lives in the mountainous regions of China, especially large populations live in Tibet and Sichuan.