They have large reserve of fat in their body for winter .
Small animals have a bigger surface area than large animals, compared to their volume. This helps animals that live in cold areas to keep their surface area:volume as small as possible, and so helps them keep on to their body heat.
Three arctic animals that have blubber besides a polar bear are seals, walruses, and whales. Blubber is a thick layer of fat that helps these animals insulate their bodies and stay warm in the cold Arctic waters.
A blobber is another term for a blubber, a fatty layer of adipose tissue or thick coat of fat worn by many arctic animals.
They have long fur or a thick layer of blubber
Like most marine animals, Narwhals possess a remarkably large layer of blubber wshich insulates them against the cold. They have a very thick layer of blubber.
blubber
Most have a thick layer of blubber and/or lost of fur.
penguins dont have blubber
Well, darling, not all arctic animals are blessed with blubber to keep them warm in those icy temperatures. Animals like the Arctic fox and the Arctic hare have to rely on their thick fur and other clever adaptations to survive the cold. So, next time you're out in the tundra, keep an eye out for these blubberless beauties!
blubber
Polar bears have a thick layer of fat, called blubber, that helps them stay warm in their Arctic habitat. This layer of fat also serves as a source of energy when food is scarce. The blubber can make up about one-third of a polar bear's body weight.
Many animals including whales, seals, manatees and penguins have a thick layer of fat called blubber. Only marine animals have blubber (but not every marine animal). Blubber provides buoyancy, hydrodynamic shape, and stores energy.
So it could stay warm in harsh weather and for protection from predetors