Cubs

The polar bear cubs begin their lives as the young darling and cuddly men.

This is in completely the constraste to the majestic kings of the Arctic one they will become themselves they survive the maturity date.

The female polar bears have their first series of small ones between the ages of four and eight (of ordinary one to the age five or six). The female ones in the Arctic Bottom wean their small ones as they approach their second birthday, while those in the Arctic Top, where the conditions are a more lot harder ones and demand, the care for their small an additional year

The polar bear cubs most often were born in the pairs, but sometimes rubbish contain three small and probably only a small one. They were born between November by January in a den. These snow of the dens are known as "the pregnancy dens" and are done to protect the small newborn one frost the extremities of Arctic temperature.

To the birth, the small ones are 30 to 35 centimeters (12 to 14 thumbs) in the length and weighs a little more than a half kilogram (of a book). Have no direction, during their few first vulnerable weeks of life, they care for most of the time and remain the more as possible to their mother to keep heats itself. The female one has special fissures inside which the small ones can obtain the heat they need to survive.

The polar bear cubs were born small and powerless, with their eyes closed and their fur is very well to the birth, doing the small ones to appear hairless. They obtain their first ones become aware of their mothers after they open their eyes a day during the first month.

The small growing one very quickly while they are in the den, thanks to the calories in their rich milk in mother, that has a big content of almost 31%. The small ones remain often on there the stomach of mothers to care for while their mother sits return and puts his head and seems return lightly to move itself of long one in wide as if to balance the small ones. The small ones begin the walk in the den to almost two months. During this time, the small ones always spend about 85% of their time in the den, sleeping there the night.

When she emerges at last with its small, most often at the end of the month of March or April, she takes them to the ice of sea if she can break it a long time quickly while hunting seals. The small ones begin food solid food in this moment that is at roughly three to four major months.

The small ones remain of ordinary one with their mother until they are 2 1/2 old years, although some bears in the sector of Bay of Hudson wean their young ones to the age 1 1/2. When the small ones attain a point where they have the force and the suitable coordinations, and when they can walk well and reply to their movement of the mother and the solid orders as the stay or come, they are ready to leave their mother and the den.

During the time that the small ones are with their mother, they must learn to hunt and survive in one of the environments of Earth more hard while looking at their mother. A success of the bear of mother to the seal hunt influence directly their well-being and determine if the small ones will live or will die once they are alone. A mother will carry sometimes its small ones on his back by the sectors of snow or of deep water if the conditions are too hazardous for the young man.

Once the small ones are weaned, the bear of mother or the male hunts the small ones for that they can begin only life.

Polar bear cubs and Problems Ecologiques

As can see you, the Polar bear cubs are very vulnerable during their first few months. This period is the time during which most of the deaths of the warming of the atmosphere and pollution intervene.

The bears of mother nourish on the fish and the polluted seals. Pollution is stored in their massive fat fabric and when they have their offspring, they pass the pollution to the young ones through there the milk of the mother of fatty top. Often their immunized systems of the small one are too weak to defend toxins and the resultant complications, therefore they die.

The global change of climate shortens the time that the bears have the type and this means that they put back to have their children until too moved away in the season. The then, less bear were born.

This double blow of misfortune causes the populations of Polar bear to diminish in a manner spectacular.

A study considered that only 43 percent of polar bear cubs in the Sea of Beaufort of the south survived their first year during the year 2000, in comparison of a rate of survival of 65 percent in the last years 80 and in comparison of the last beginning of the years 90.

Clearly, something must be done to maintain the reproduction of polar bear to a rate that guarantees the type survival.