evolutionary psychology

Human personality theory has long revolved around what we know as the ‘Big Five’ – five dimensions of personality that cover a large swathe of how humans behave across time and contexts. These dimensions are conscientiousness (tendencies to be orderly and rule-abiding), agreeableness (easy to get along with), extraversion (outgoing), neuroticism (tendencies to be anxious… Read more

Mood swings, raging impatience, delusions of immortality. All the things that make a teenager a teenager might just seem like a phase we all have to go through. But research increasingly shows that the behaviors of teenagers aren’t just there to annoy parents, they serve a real evolutionary purpose. What is a teenager? Our standard… Read more

Why did we evolve eyes so that are expressive? It started as a universal reaction to environmental stimuli, new research suggests, and evolved to communicate emotion. For example, people in the study consistently associated narrowed eyes — which enhance our visual discrimination by blocking light and sharpening focus — with emotions related to discrimination, such… Read more

You know things are getting serious when a poker player slides their sunglasses on to stop their eyes giving the game away. But if you were playing a gorilla or a dog the animal may not need sunglasses since their eyes are much harder to read, because you can’t see the whites of their eyes… Read more

Darwin was right, at least in one thing. Groups enjoy an advantage when their members are ready to aid one another and to sacrifice themselves for the common good, according to a new study. Using variations of the public goods game, the researchers showed that when no other mechanism is present to reinforce group cooperation… Read more