Amazing survival power of water bears
TOKYO, Japan - Water bears, a slow-moving animal measuring less than 1 millimeter in length (photo), can survive extremely high atmospheric pressure equivalent to 75,000 atmospheres, according to experiments conducted by researchers at Okayama University. The eight-legged water bears are known to survive in extreme environmental conditions, such as minus 250 C temperatures, extreme dryness and heavy radiation. Fumihisa Ono, an Okayama University physics professor involved in the project, says researchers applied 75,000 atmospheres of pressure to 20 dried up water bears and found that they all came back to life six hours later when they were given water moisture. Five of them were still alive 12 hours later. Scientists say the cells of most animals die when exposed to more than 3,000 atmospheres. (Photo provided by Fumihisa Ono) (Kyodo)
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- ILEA000036693
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- 2007/7/24 00:00:00
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