OMGWTF Neurotic animals!

From "Genes, Evolution and Personality", Bouchard and Loehlin 2001. Formatting slightly screwed up, sorry, but I know none of you can resist the news that octopuses are neurotic.


Octopus neurosis 1: you change colour, but you think a passing crab may be laughing at you.

Octopus neurosis 2: nervously tangling your tentacles together.

    Table I. Animal Personality Factors Based on Factor Analyses of Individual Animals Classified According to the Five-Factor Model
                                                        and Two Additional Factorsa
                                                  Five-factor model trait names                                       Additional dimensions
Species              Neuroticism     Agreeableness        Extraversion        Openness       Conscientiousness      Dominance        Activity
Chimpanzee                x                 x                    x               x                   x                   x              x
Gorilla                   x                 x                    x                                                       x
Rhesus monkey             x                 x                    x               x                                       x
Vervet monkey                               x                             x                                              x
Hyena                     x                 x                                    x                                       x
Dog                       x                 x                    x                       x                               x
Cat                       x                 x                    x                       x
Donkey                                      x                    x
Pig                                         x                    x               x
Rat                       x                 x
Guppy                     x                                      x
Octopus                   x                                      x                                                                      x
a

Adapted from Gosling and John (1999); an x indicates that the factor or a combination of two factors was found for that species.