Cracking how 'water bears' survive the extremes

Diminutive animals known as tardigrades appear to us as plump, squeezable toys, earning them irresistible nicknames such as "water bears" and "moss piglets."

Tiny 'water bears' can teach us about survival

Earth's ultimate survivors can weather extreme heat, cold, radiation and even the vacuum of space. Now the U.S. military hopes these tiny critters called tardigrades can teach us about true toughness.

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