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"Climate change is being being blamed for the changing shape of Scottish Sheep - the results of a 20 year study of Soay sheep in the Outher Hebrides revealed. Published in Science, it is thought that increasingly harsh winters have led to larger sheep. This in turn has effected population size.  Describing studying the flock as a natural labatory - the study also not surprsingly concluded that when winters became less harsh the sheep would get smaller."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.trendhunter.com/trends/sheep-change-shape>