Arctic weather stick figure

When it comes to the extreme earth in the world, everyone will definitely think of deserts, the North Pole and the South Pole, the most controversial of which are the North Pole and the South Pole. They are extremely cold areas, but they represent different creatures. The North Pole represents polar bears and the South Pole represents penguins, which has a lot to do with the geographical location of the two places and the characteristics of the creatures themselves.

First, let's see why the representative creature of the Arctic is the polar bear. According to the observation of scientists, it can be found that there were actually many creatures in the former Arctic, but it was not surrounded by many islands like the Antarctic, but an isolated place. Later, the natural weather changed greatly, and the Arctic began to cool down crazily. Many creatures can't stand such weather changes and gradually go extinct. Polar bears are different. Its hair is particularly thick and its cold resistance is particularly strong. At that time, there were penguins in the Arctic. After the great changes in the natural weather in the Arctic, penguins have no choice but to leave the Arctic and go to the South Pole.

Here, we should pay attention to why polar bears have not left such an absolutely cold place as the North Pole. In fact, the reason is relatively simple. Creatures like bears have unique advantages in cold tolerance, but they are big and consume a lot of energy. They need several times as much food to replenish energy as penguins. What's more, at that time, the South Pole and the North Pole were far away. When polar bears want to escape to the South Pole, it is difficult to replenish energy at first. It's too big and too difficult.

Penguins, on the other hand, are not as cold-resistant as polar bears, but they are still very good. In addition, they are small in size and fast in swimming, and it is enough for eat small fish to supplement energy, which gives them an absolute advantage in moving speed. Therefore, penguins can successfully travel from the North Pole to the South Pole and eventually become the representative creatures of the South Pole. Of course, this has a lot to do with the inherent geographical disadvantage of Antarctica, but the key is biological factors.