Since the BBS article in which Premack and Woodruff (1978) asked “Does the chimpanzee
have a theory of mind?,” it has been repeatedly claimed that there is observational and …

Animal sociality facilitates the transmission of pathogenic microorganisms among hosts, but
the extent to which sociality enables animals' beneficial microbial associations is poorly …

Patterns of coalitionary aggression among female animals are generally explained by kin
selection theory. Frequent female coalitions are almost exclusively observed in female …

Parochial altruism, taking individual costs to benefit the in-group and harm the out-group,
has been proposed as one of the mechanisms underlying the human ability of large-scale …

Dominance hierarchies are widespread in animal social groups and often have
measureable effects on individual health and reproductive success. Dominance ranks are …

Recognition and memory of familiar conspecifics provides the foundation for complex
sociality and is vital to navigating an unpredictable social world [Tibbetts and Dale, Trends …

In most male mammals, fitness is strongly shaped by competitive access to mates, a non-
shareable resource. How, then, did selection favor the evolution of cooperative social …

Chimpanzees are important referential models for the study of life history in hominin
evolution. Age at sexual maturity and first reproduction are key life history milestones that …

Investigations into cooperative partner choice should consider both potential and realised
partners, allowing for the comparison of traits across all those available. Male bottlenose …

Highlights•Some species form social bonds that facilitate cooperation and provide
benefits.•Adult male chimpanzees form some of the strongest and most stable social …