Actually zoologists claim that bears do not fall into the real hibernation but only only partially sink into more long sleep. Whether so it?
Why bears fall into hibernation
Bears, as well as many mammals, do not stock for the winter period. It is known that clumsy fall into a long dream during which actively consume the fat stocks made during summer and autumn seasons. Actually, it is impossible to call a dream of a bear hibernation. Simply in the winter it just more long, than in the summer.
If to speak about hibernation, during this process all vital indicators practically come down to zero. Body temperature at an animal falls and becomes only slightly higher than the air surrounding it. It allows to reduce energy consumption. If external factors of the environment change, for example, if temperature in a den falls, then the animal wakes up, warmed (burying during snow or a laying) and again sinks into a sleep. Thanks to it it is possible to keep more heat, therefore, there will be less power consumption, and the bear will safely postpone a wintering that in the summer to be chosen to the forest again.
Features of hibernation
It is known that not all bears plunge into hibernation. Polar differ from the European relatives. When the others quietly snuffle in dens, they actively look for food. An exception to the rules are pregnant females who fall into hibernation for several months until they have kids. After the birth of bear cubs the she-bear leaves a den and continues active activity in search of food. It is better to awake the bear sleeping in a den never as clumsy wakes up at once, at the same time it becomes 100 times more dangerous. Such cases are extremely rare that the person came across a den in the winter. Bears choose very secluded places in the forest area where, perhaps, the leg of the person did not even go. Scientists try to solve not one year the mystery of forest giant. Still it is definitely not revealed that allows them to be in full hibernation up to 7 months. Having answered this question, scientists hope to make the substances used by an animal and for the person. It, in turn, will help the person to sink safely into a long sleep without harm for an organism. Anyway, all this only developments for now people need to envy a powerful dream of a bear.