Polar bears have two layers of fur: the bottom layer and the protective layer. These two layers of fur provide additional temperature protection for polar bears. The two layers of hair are translucent, with black skin hidden underneath.

According to WWF, this is because translucent hair reflects sunlight and makes them look white. If you have seen many photos of polar bears, you will notice that they look a little gray in cloudy weather and even red at sunset, so their fur makes the color of polar bears depend entirely on the light they reflect.

The distribution range of polar bears

Distributed in Canada (Labrador, Manetho, Newfoundland, Northwest China, Nunavut, Ontario, Quebec and Yukon), Greenland, Norway, Russia (Yakutia, Krasnoyarsk, Western Siberia, Nordic Russia), Svalbard and Jan Mayen, and the United States (Alaska). Besides, I will occasionally wander around Iceland.

Polar bears live in the southern part of the Atlantic northwest near the coast of Newfoundland, Canada. The northernmost recorded observation of polar bears is at 89 46' north latitude, 25 kilometers from the North Pole. The southernmost known habitat is located on Aki Miski Island of James Bay, with a latitude of 52 35' north.