Seek the coldest joke in the world, "the joke that can freeze polar bears to death"

Polar bears and penguins are chatting at the North Pole. Penguins have pulled out their second hands. Say to the polar bear, "It's cold here". Hearing this, the polar bear took off his fur coat. Say to the penguin, "Yes, it's cold!" " "

Actually, you are the coldest joke.