Table 1. Shared Personality Traits.
AMONG ALL AMONG ALL AMONG ALL VARIABLE UNIQUE TO
MAMMALS HIGHLY SOCIAL PRIMATES TRAITS SHARED HUMANS
ANIMALS BETWEEN HUMANS
(elephants, AND PRIMATES
dolphins,
dogs)
Attachment to Preference to Cognitive Activity level Brain to body
mother be in groups curiosity Fearfulness weight ratios
Circadian Nuturance of Capacity or Impulsivity Anatomically
rhythms young for manipulation Sociability unspecialized
Explorations prolonged Capacity for Nuturance hand having
Change over periods innovative (including the potential
the course of Jealousy behavior altruism) for tool use
lifetime in displayed Imitative Aggressiveness Tool use as
the Affection Especially Dominance ubiquitous
percentage of displayed educable, and
innate to Dominance by compensating necessary,
learned some for weaker the
behavior. individuals innate construction
Duality of responses of tools
location of Ability to
fear response comprehend
in both the abstract
sympathetic thoughts and
nervous ask "why?"
system and Recognition
the hormonal of biological
system relationships
Aggressive between
behaviors individuals
Sexual Ability to
dimorphism in take
behavior perspective
of other
individual
Ability to
transmit
ideas and
cultural
information
Imagination
Social roles
and division
of labor
Ability to
formulate and
follow
complex rules