... Tardigrade in Moss . ... Probably not, but of all the animals on Earth, the tardigrade might be the best candidate. That's because tardigrades are known to be able to go for decades without food or water, to survive temperatures from near absolute zero to well above the boiling point of water, to survive pressures from near zero to well above that on ocean floors , and to survive direct exposure to dangerous radiations . ... 2011 2012 . ... NASA Web Site Statements, Warnings, and Disclaimers . ...