Research on morality has increased rapidly over the past 10 years. At the center of this
research are moral judgments—evaluative judgments that a perceiver makes in response to …

The study of cooperation is rich with theoretical models and laboratory experiments that
have greatly advanced our knowledge of human uniqueness, but have sometimes lacked …

A scientist integrates evolutionary biology, genetics, psychology, economics, and more to
explore the development and workings of human societies.“There is no good reason why …

Across societies, humans punish norm violations. To date, research on the antecedents and
consequences of punishment has largely relied upon agent-based modeling and laboratory …

Human cooperation is highly unusual. We live in large groups composed mostly of non-
relatives. Evolutionists have proposed a number of explanations for this pattern, including …

We test the theory that shame evolved as a defense against being devalued by others. By
hypothesis, shame is a neurocomputational program tailored by selection to orchestrate …

Human adults engage in costly third-party punishment of unfair behavior, but the
developmental origins of this behavior are unknown. Here we investigate costly third-party …

Fines, corporal punishments, and other procedures of punitive justice recur across small-
scale societies. Although they are often assumed to enforce group norms, we here propose …

Human foragers are obligately group-living, and their high dependence on mutual aid is
believed to have characterized our species' social evolution. It was therefore a central …

Researchers in the social and behavioral sciences are increasingly using evolutionary
insights to test novel hypotheses about human psychology. Because evolutionary …