From an evolutionary perspective, followership is puzzling because it is not clear why
individuals would relinquish their autonomy and set aside their personal goals to follow …

We review emerging research on the psychological and biological factors that underlie
social group formation, cooperation, and conflict in humans. Our aim is to integrate the …

Humans are a puzzling species. On the one hand, we struggle to survive on our own in the
wild, often failing to overcome even basic challenges, like obtaining food, building shelters …

Social categorization is a universal mechanism for making sense of a vast social world with
roots in perceptual, conceptual, and social systems. These systems emerge strikingly early …

Social interactions are characterized by distinct forms of interdependence, each of which
has unique effects on how behavior unfolds within the interaction. Despite this, little is known …

Social groups across species rapidly self-organize into hierarchies, where members vary in
their level of power, influence, skill, or dominance. In this review, we explore the nature of …

Wealth differences between individuals are ubiquitous in modern society, and often serve as
the basis for biased social evaluations among adults. The present research probed whether …

The pursuit of social status is a recurrent and pervasive challenge faced by individuals in all
human societies. Yet, the precise means through which individuals compete for and …

Selecting appropriate foods is a complex and evolutionarily ancient problem, yet past
studies have revealed little evidence of adaptations present in infancy that support …

Third-party punishment of antisocial others is unique to humans and seems to be universal
across cultures. However, its emergence in ontogeny remains unknown. We developed a …