This page features lots of information on the majestic polar bear
Polar bears inhabit the Arctic circle. They are also known as marine bears and have evolved to be perfect for the cold Arctic environment in which they live. They have adapted to be good in the environments of both ice and sea and have also evolved to be very good at hunting seals which are there main source of food.
While polar bears are white their fur is actually transparent. Polar bear fur looks white because of the way it reflects the light. Polar bears living in zoos sometimes have green fur. This is because their hairs are hollow and sometimes algae manages to grow inside the hairs. Polar bear fur is also very oily which prevent water from dampening it. Because of this when polar bears exit the water they can shake themselves dry.
Polar bears only hunt during certain times of the year. This is when they have access to their favourite hunting ground which is areas of sea ice. In these areas polar bears are excellent hunters but struggle when hunting other animals on either open land or in open sea. During the years when polar bears are not hunting they enter a state known as walking hibernation. While not traditionally hibernating in the way seen by many other animals polar bears do experience some moderate signs of hibernation even though they remain active during this period.
Before having polar bear cubs. Polar bear mothers dig themselves dens in the Arctic ice. Polar bear cubs are born in these dens and remain in them for the first months of their lives. leaving their dens with their mother to explore the outside world only after they have gotten to a certain size. Polar bear siblings often stick together and share food for weeks or months after they leave there mothers.
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Also check out polar bear endangered