▪ Abstract In the 1970s, researchers provided the first detailed descriptions of intergroup
conflict in chimpanzees. These observations stimulated numerous comparisons between …

We present evidence that people in small‐scale mobile hunter‐gatherer societies
cooperated in large numbers to produce collective goods. Foragers engaged in large‐scale …

Observation of leadership in small-scale societies offers unique insights into the evolution of
human collective action and the origins of sociopolitical complexity. Using behavioural data …

The Company of Strangers shows us the remarkable strangeness, and fragility, of our
everyday lives. This completely revised and updated edition includes a new chapter …

Evolutionary anthropologists seek to understand the evolution of warfare across multiple
timescales, from the roots of warfare in the intergroup aggression of our primate ancestors …

The fundamental question of political theory, one that precedes all other questions about the
nature of political life, is why there is a state at all. Is human cooperation feasible without a …

The systematic exploitation of marine foods by terrestrial mammals lacking aquatic
morphologies is rare. Widespread ethnographic and archaeological evidence from many …

Over the pre-Columbian sequence, Andean warfare ranged greatly in intensity. This review
combines published information on cranial trauma and settlement patterns, which often align …

Conflict can profoundly affect individuals and their groups. Oftentimes, conflict involves a
clash between one side seeking change and increased gains through victory and the other …

In the absence of explicit punitive sanctions, why do individuals voluntarily participate in
intergroup warfare when doing so incurs a mortality risk? Here we consider the motivation of …