Why do penguins stay in cold places?

Driven by the environment, there is no way

This question is very difficult! I looked it up on the internet, and basically I can think of

Penguins once existed in the Arctic, and long-term indiscriminate hunting led to the complete extinction of Arctic penguins.

The results of paleontological research show that penguins appeared in Tertiary as early as 50 million years ago, and it was found that penguins once lived in the Arctic, because an extinct bird skeleton was found in the Arctic, which was called "Big Penguin".

This "big penguin" is about 60 cm tall, with a brown head, black feathers on the back and a white abdomen. They are as clumsy as other penguins when walking on land, but they are also good at swimming in the sea. "Big Penguins" are mainly distributed in Europe, Scandinavia, Asia and North America, and some islands in the Arctic Ocean, with a number of one million. However, three or four hundred years ago, Europe set off an upsurge of exploring the Arctic. With the arrival of explorers and immigrants, the "big penguin" has become the object of contention, and its number has dropped sharply. When the last "big penguin" was killed, there were no penguins in the northern hemisphere. This is why there are no penguins in the Arctic.

Please refer to the following information

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