Pigs can be pessimists, University of Lincoln tests find
Pigs have personalities and can be pessimists or optimists, much like humans, new research has suggested.
Scientists at the University of Lincoln tested 36 animals, offering them bowls containing chocolate or less appealing coffee beans in two fixed locations.
Pigs were considered optimists if they investigated a third bowl, placed in the middle of the two bowls, even though it might not contain treats.
Dr Lisa Collins said it suggested the judgment of pigs was similar to humans.
The research, which has been published in the Royal Society journal Biology Letters, saw some pigs treated to... read more
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