Tardigrades (meaning “slow walker”) are polyextremophiles meaning they can survive under extreme environmental conditions. According to Wikipedia they “can survive tempuratures close to absolute zero, temperatures as high as 151° C (303° F), 1,000 times more radiation than any other animal, nearly a decade without water, and even the vacuum of space.” They have been found living in hot springs, the Himalayas, under layers of solid ice, and in ocean sediment. The largest tardigrades can be as long as 1.5 mm.

4 Replies to “Polyextremophile”

  1. They are mites who eat protein debris. I think I read that these things can even survive in space without a space suit. This is what aliens most likely look like.

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