How Polar Bears Got Thick Fur
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How Polar Bears Got Thick White Fur
By Ariyana Rahman
Long ago the polar bears fur had many different types of fur. Some were thick, some were thin.
But the Arctic Circle is very cold so the thick furred polar bears would stay warm but the thin furred polar bears were cold.
It got so cold that the thin furred polar bears froze to death! But the thick furred polar bears lived on.
The thick furred polar bears reproduced and passed on their thick fur genes. Those babies reproduced again and kept on passing on the thick fur genes. Now only thick furred polar bears live. Their thick fur is thick enough to keep them warm even in the coldest weather. This is called survival of the fittest.
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