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BBC: It is a true picture of contentment, and now a scientist is suggesting that a pig's love of mud is more than just a way to keep cool.
A researcher in the Netherlands has looked at wallowing behaviour in pigs' wild relatives to find out more about what motivates the animals to luxuriate in sludge.
His conclusions suggest that wallowing is vital for the animals' well-being.
The study is published in the journal Applied Animal Behaviour Science.
It is already well accepted that pigs use......
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Pigs have ‘evolved to love mud’
Posted by Washington Post: Juliet Eilperin on April 29th, 2011
Posted in Water Conservation