BBC: A study of hailstones has found large numbers of bacteria at their cores.
The find lends credence to the "bio-precipitation" idea, which suggests that bacteria are actively involved in stimulating precipitation.
The bacteria have protein coatings that cause water to freeze at relatively warm temperatures.
Researchers at the American Society for Microbiology meeting suggest bacteria may have evolved to use the water cycle to facilitate their own dispersal.
The micro-organisms that can......
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Bacteria ‘abound in hailstones’
Posted by BBC: Jason Palmer on May 25th, 2011
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