這貨一定來自太空

Tardigrades can withstand temperatures from just above absolute zero to well above the boiling point of water. They can survive pressures greater than any found in the deepest ocean trenches and have lived through the vacuum of outer space. They can survive solar radiation, gamma radiation, ionic radiation— at doses hundreds of times higher than would kill a person. They can go without food or water for nearly 10 years, drying out to the point where they are 3% or less water, only to rehydrate, forage, and reproduce。

http://en.wikipedia.org/wiki/Tardigrade

蟑螂能夠在棲息地遭受核打擊後幸存下來，生命力之強悍令人歎為觀止。實際上，地球上生活著比蟑螂更為強悍的動物，那就是被稱之為“自然界最偉大幸存者”的水熊蟲。

水熊蟲能夠經受住零下457華氏度的低溫，零上357度的高溫以及5700戈瑞輻射考驗，10到20戈瑞的輻射劑量便足以殺死人類以及其他絕大多數動物。此外，它們還能在無水情況下存活10年，甚至能夠在太空中幸存下來。

即使將它們蒸煮、冰冷、暴曬或者置於高輻射的環境，水熊蟲仍能存活200年之久。

從海拔最高的山脈到深度最深的海洋，水熊蟲的足跡遍布地球的每一個角落。