Scientists finally figure out why the water bear is nearly indestructible

Freeze it, boil it, or expose it to radiation. The water bear shrugs it off. Now we know why. 

 

Medically accurate model of a tardigrade or water bear.

The tardigrade, also known as the moss piglet or water bear, is a bizarre, microscopic creature that looks like something out of a Disney nightmare scene: strange but not particularly threatening. The pudgy, eight-legged, water-borne creature appears to be perpetually puckering. It's the farthest thing from what you'd expect an unstoppable organism to look like.

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