Pigs are optimistic and pessimistic just like humans: Study
A UK-based study has found some pigs are optimistic and go-getting while others are pessimists and moody, just like humans. The different personalities were revealed through an experiment which offered sugar-coated chocolates or 'disappointing' coffee beans to the animals. Pigs were found to be more pessimistic in a less enriched environment and more optimistic in a better-enriched environment.