Do polar bears and diminutive Antarctic penguins, king of the Arctic Ocean, hibernate?

There are no colder places than the South Pole and the North Pole. In these two places, there live lovely penguins and polar bears. So do these two animals hibernate? According to Xiao Jianfei, an expert on down insulation, polar bears, the king of the Arctic Ocean, do not need to hibernate in the world. Bears in other places have the habit of hibernating. The northeast is called "squatting", which depends on consuming the fat stored in the body. You can sleep comfortably for a few months. But the polar bear does not hibernate. It only hibernates for a few hours when the weather is at its worst. The thick fluff and almost the same fat layer provide excellent insulation, despite the heavy snow and the storm. They can sleep. Penguins don't hibernate either, but they go together to keep warm.

PS: polar bear, also known as white bear, is the largest land carnivore in the world. The skin is black, because the hair is transparent, so the appearance is usually white, but also yellow and other colors, huge, ferocious.

Polar bears have the same eyesight and hearing as humans, but they have an extremely keen sense of smell, seven times that of dogs, and can run as fast as 60km/h, 1.5 times as fast as the world 100-meter champion. Due to the rising global temperature, the Arctic ice floe gradually began to melt, the former home of polar bears has been destroyed to a certain extent, is likely to become extinct in the near future, and needs human protection.

Polar bears mate in March and April, but the fertilized eggs are stored in the fallopian tubes and do not develop until autumn when they enter the womb and begin to give birth at the end of the year. The cub weighs only a few hundred grams, equivalent to 1/1000 of its mother's weight. But it develops very fast after birth, and the fat content of its breast milk is more than 30%, which is unmatched by any other predator. The cubs have more than a year to live with their mothers, learn how to hunt and survive in the harsh Arctic environment, and then begin to live on their own. Males generally leave female bears earlier than females.

Annex 2: there are 18 independent species of penguins, the largest of which is the emperor penguin, which is about 1.1 meters tall on average and weighs more than 35 kilograms. The smallest penguin species is the little blue penguin (also known as fairy penguin), which is 40 centimeters tall and weighs 1 kilogram. It has its own unique structure. The density of penguin feathers is three to four times higher than that of birds of the same size. These feathers regulate body temperature. Although the feet of penguins are basically similar to those of other flying birds, their bones are hard and their feet are short and flat. This feature works like the short wings of two oars, allowing penguins to "fly" underwater. Although Antarctica is extremely cold, penguins have turned their feathers into overlapping scales after tens of millions of years of snowstorms. This kind of special feather coat is not only difficult to soak through the sea water, but also cannot break through its heat preservation line even if the temperature is nearly 100 degrees Celsius below zero. There are many lands in Antarctica, the sea is wide, and the rich marine plankton has become an abundant food source for penguins.