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Pictured: A mare chases one of the pigs away from her water hole.
Hundreds of pigs have been let loose in the ancient New Forest national park to gobble up fallen acorns which are poisonous to other animals.
The quirky tradition involves swine roaming the Hampshire woodland to clear it of the fruit which can be fatal to the famous ponies and cattle.
They will spend 60 days rummaging around the 70,000 acre forest before being rounded up in November.