According to a personality psychology study, dolphins were discovered to have similar characteristics to that of humans. The study looked at the five personality traits common among the most intelligent animals. These traits include extraversion, neuroticism, agreeableness, openness, and conscientiousness.
These five characteristics were already observed in rats and chimpanzees and now, there are being observed in dolphins. However, all creatures have some variation of these traits while some have more demonstrative versions than other creatures.
A recent study in which researchers observed 134 dolphins in eight facilities across the world revealed that dolphins share some similar characteristics with humans. The study measured personality in 49 different dolphins with the use of a questionnaire. The study also used a version of the questionnaire that had seven extra items to measure personality in 85 dolphins.
The questionnaires determined four characteristics, of which three are both human and non-human primates. These characteristics are high openness, which means creativity, low agreeableness, which means not see others’ happiness as important as yours, and high extraversion which means a high level of socialization.
Clinical psychology has always made mention of these traits. Jordan Peterson, personality psychologists noted that low agreeableness is typical in people who ask for a high increase at work while people with high agreeableness always have a difficult time climbing corporate ladders.
Researchers aren’t certain about the reasons behind these Big 5 traits and are beginning to study more and more animals as this will help evolutionary psychologists to know how these traits were developed