I am an evolutionary social scientist fascinated by the origins of human ultrasociality – our ability to organize ourselves into societies capable of large-scale cooperation and large-scale conflict. I use ethnographic methods and mathematical models to understand the genetic and cultural origins of human cooperation and conflict, especially in the contexts of war, hierarchical institutions, and environmental sustainability.
I conduct ethnographic fieldwork with Turkana pastoralists in northern Kenya. The Turkana at my research site organize large raids without the aid of hierarchical institutions and have a high degree of combat exposure. My latest study is assessing the extent to which Turkana warriors suffer from combat stress and combat-related moral injury.
I am currently a postdoctoral research fellow at ASU’s Institute of Human Origins and a member of the Adaptation, Behavior, Culture and Society research group in the School of Human Evolution and Social Change.
Previously, I was a postdoctoral researcher at the National Institute for Mathematical and Biological Synthesis and, before that, a member of the Cultural Evolution and Human Behavioral Ecology Labs at the University of California, Davis.