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September 03, 2016 23:11

Why the bear is sleeping in the winter ?

Bears belong to the order of prey.In appearance they are, oddly enough, pretty much resemble dogs, but their body is much more developed.Furthermore, they can go not only on four legs, but also on two.It is also distinguished by the fact that they are able to climb trees, swim quickly and pass long distances.Another interesting fact that in nature, they have little or no enemies because of their size and strength.With regard to the length of the body, it can reach as much as three meters and weighs under a ton, but we are talking about polar bears.But, say, a fraction of the Malay - their length rarely exceeds one and a half meters.The females are always smaller than males.

Almost all species are omnivorous, but some of them prefer more vegetarian food, and others - animals.This, however, depends on the accessibility of the feed and the season.Most species migrates throughout the whole year, but black and brown Himalayan bear almost the entire winter is carried out in the prepared den in a state of

hibernation.In addition, here you can include female polar bear that hibernate, being pregnant.

reasons hibernation

  • In fact, there is nothing secret about it.The first bears sleep in winter, because with the advent of cold weather, they begin to experience serious difficulties with boarding and lodging - vegetarian food is becoming extremely difficult to find.Of course, they can try to eat only animal food, but on this diet for a long time they will not be able to live.By the way, under the snow animals often find berries or fruits due to the fact that they have a highly developed sense of smell.
  • Secondly, its significant role played by the size of the animal.See for yourself - the average bear can weigh up to 500 kg.Now imagine how much you need food that would feed a whopper?Lots of!And if the vegetation is more or less clear, then, say, the same hares or foxes catch is not so easy.And by the way, the need for energy consumption grows more winter than in summer.

Features hibernation

  • Since onaya can last up to six months, the bear must have the necessary supply of energy to it.Where to get it?In fact, it is deposited in the subcutaneous fat, which is the animal gains during the warm season.In addition, when the animal falls asleep, his body is completely rebuilt.For example, the heartbeat rhythm is markedly reduced, in addition, bear breathes much less.All of this saves him as oxygen in the den, and valuable substances in the subcutaneous fat reserves, which lasts for many months.By the way, during this time the animal can lose up to half their own body weight!
  • Sleep clumsy very sensitive, it can be said that it is dormant all these long months.Therefore, if far from the den runs through a pack of wolves that loud bark, the bear could easily wake up.And there is nothing good about that, because he is sleepy in search of food and often go to the villages and ruining the rural warehouses.
  • in dens and cubs are born.In the same litter can be up to five individuals, and they weigh only a few hundred grams.They are helpless, besides the blind and the first few months of sucking mother's milk.In the spring, a little firmly established, it climbs out of the den with his mother.All of them remain with her for about one and a half years.By the way, to be near the bear, which, together with the kids is a walk, would not wish even the enemy, as in any danger she is ready to literally break his opponent.

Why bear sucking his paw?

The people is a legend according to which during hibernation toed paw sucks.Allegedly it helps him to survive the cold winter, while he slept in his lair.But what kind of leg in question, no one really can not say.Furthermore, if you try to find this picture on the Internet, it is unlikely that you have something happens and it's strange, considering that the camera is in any mobile phone.So where is the truth?

In fact, everything is much easier.As researchers found, we bear paw covers the surface layer of the skin is very thick, which allows him to move around a rocky surface, totally without pain.However, after a clumsy becomes dormant, beneath the old skin layer starts to grow a new layer.In order to molt occurs as quickly as possible, the bear pulls a paw to the face and starts biting the old skin.It is also believed that this process may bring some inconvenience to the beast, as the sole begins to itch.

There is another, no less interesting version, it only touches the cubs that suck paw if they live in captivity.What is the reason?The fact that the child spend all winter with his mother, feeding her milk.It is worth noting that her nipples are not on the line of the abdomen, as in most animals, and in the groin and armpits.Bear the same for several months doing nothing, eating mother's milk, and keeping the nipple in his mouth.In captivity, as they are usually fattened from papillae like little kids.But after eating they are released, and they apparently do not have enough contact with his mother, so they start to suck his paw.The nature of such very rare