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Pigs are pretty smart: a 2009 study in Animal Behaviour found they could use a mirror to find hidden food and according to naturalist Terry Nutkins they are [the fourth most intelligent species on earth.]1
But that doesn't make this YouTube clip of Moritz the pig 'solving' a puzzle, uploaded by his owner Nicolle Von Eberkopf, any less unnerving.
After successfully completing the task, Moritz is rewarded with his favourite snack, popcorn.