Because photogenic appearance polar bear makes people who know him only by television shows about animals or brilliant cartoon "Umka" affection.However, this predator is not harmless and the level of ferocity goes "head to head" with his fellow North American grizzly.
weight of a polar bear (male) reaches seven hundred and fifty kilograms or more.According to some reports, there are bears, weighing a ton.It is the world's largest land predator.The female is less than a half to two times.The growth of the animal is almost three and a half meters.Due to the severity of the climate and the enormous weight of this arctic desert forced the king always something to eat.There are cases when a starving bear ate in one sitting eating up to 10 percent of its own weight, and in record time - just half an hour!
Polar Bear prefers to feed on seals, it's his favorite food.But in the absence of these or may include in your diet rabbits, reindeer, lemmings, crabs and even a man, if he be so careless, that would be within the reach of hunger crazed animal.
But human polar bear still prefers not to get involved and attacks only when it is threatened with starvation.Experienced explorers claim that getting rid of culinary ambitions bear easily.To do this, just do not act like the food.That is not to run headlong with the appearance of the white giant.There are newsreels, where puny polar waving isolated from the crate rack, turned to flight the snow giant, surpassing its size by more than half.
polar bear has phenomenal instincts.For example, the seal he is able to "sniff out" as much as thirty-two kilometers.The bear is on the top of the food chain.This means that the natural enemies had virtually none.And the enemy is "unnatural" (ie, people) are now more concerned with the preservation of the bear population, only occasionally catching individual animals for zoos.
Now the world has, by various estimates, from twenty to forty thousand.Most belomedvezhego population lives in Northern Canada and Greenland.Under natural conditions, polar bears live up to twenty-two years.
Habitat mostly bears - around large polynyas, where to hunt sea mammals and fish.But we know that they can make long journeys on the drifting ice.In October, she bears prepare their dens where they will hibernate and nurse their young.Interestingly, polar bears, as well as their brown cousins, lie dormant.However, not always all.It is mandatory to sleep pregnant female bears, their hibernation lasts up to two and a half months.Before that, they fatten up to two hundred kilos of fat that they need for normal development of a baby.Females, free from bearing offspring, and males lie dormant for a shorter period and each winter.
Until 2012, it was thought that the polar bear as a species is allocated about one hundred and fifty thousand years ago.For this version of said genetic studies conducted by a group of scientists a year earlier.But additional research has expanded to clarify the age of the species.It turned out that the first white bears were separated from their brown ancestors were about six thousand years ago.Thus, the polar bear managed quite well to survive several ice ages.
