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Shrinking sheep mystery solved: Blame warming

02 July, 2009 08:10:14 MSNBC
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The shrinking sheep on Scotland's Hirta Island have proven that climate can trump natural selection, researchers say. The average body size has shrunk by 5 percent since 1985.Two years after scientists concluded that a breed of wild sheep in Scotland was shrinking over time, a new study reveals why: milder winters tied to global warming.




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