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Spacesuits Optional For 'Water Bears' Tuesday, September 09, 2008 - Ehud Rattner Home >> Headlines >> Biology   
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It's one small step for water bears, one giant leap for animal-kind. Tiny animals called tardigrades — better known as water-bears — have become the first animals to survive the cruel vacuum, intense cold and radiation of space without a spacesuit. Water bears were already known to be among the toughest critters alive. When not flying in a low Earth orbit, they prefer to spend their days in water, perhaps on a beach or a dewy patch of moss. (source: nature.com)
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