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Sometimes polar bears have to travel long distances to get their food, which explains why they've adapted to going months without eating. According to Lisa Kemmerer's book, Bear Necessities, polar bears have the ability to store nearly 150 pounds of food in their stomachs and can enter a "metabolic state similar to that of hibernation" at any point of the year. In fact, pregnant polar bears can actually go without food or water for four to eight months, as they retreat to their den to protect their soon-to-be-born.

It's true—polar bears are super swimmers. While most humans can barely last an hour in the water, polar bears can swim for days at a time. The Environmental News Network reports that polar bears regularly swim distances of 30 miles at a time. What's the longest polar bear swim of all time? According to National Geographic, one female polar bear swam for a "record-breaking nine days straight," traveling a distance of 426 miles.

Don't worry, they look white to us, too. But, the skin of a polar bear is actually black, and their fur is actually translucent. So, we only see white because when sunlight hits their fur, the air spaces between each hair scatter the light of all other colors

When female polar bears give birth, they typically do so in December and usually can give birth to anywhere between one and four cubs at a time. But according to Polar Bears International, they typically give birth in pairs of two, which means twin polar bears are not uncommon.

If you wanted some of your friend's food, you would probably just ask them if they wouldn't mind sharing. Polar bears, on the other hand, ask for a bite to eat with their noses. According to Polar Bears International, a "guest bear will approach slowly, circle around a carcass, then meekly touch the feeding bear's nose" to ask if they can have some of the food