We humans come from a diverse order, the primates, which make excellent model systems for studying the interface between the biological and the social. In this talk, I focus on our long-running field studies of the rhesus macaques of Cayo Santiago, Puerto Rico. Decades of individual-based demographic data allow us to explore variation in life […]

Paleolithic archaeologists have employed expectations generated from models developed in evolutionary anthropology to aid in the investigation of the origins of high-fidelity cultural transmission. Based on the notion that copying error ought to yield high levels of between-group cultural variation under unbiased cultural transmission, archaeologists have interpreted ostensibly “lower-than-expected” levels of cultural variation among regional […]

Given that animal-borne pathogens pose especially high disease risks and, moreover, that a growing body of research suggests that the evolved function of disgust is the avoidance of disease, it is largely unsurprising that the consumption of non-normative meat would evoke strong disgust reactions. Yet, it is largely unclear whether and when concerns about disease […]

Friends have recurrently provided social, material, and emotional support—helping humans meet a range of recurrent challenges tributary to fitness. But friendships are not the first type of relationship that comes to mind when thinking about research in social psychology or evolutionary social science. Moreover, when friendships are the focus, work typically foregrounds the friendship dyad. […]