Pete RichersonPeter J. Richerson is Distinguished Professor Emeritus in the Department of Environmental Science and Policy at the University of California, Davis. During his first career, he studied the ecology of lakes, but he also became increasingly interested n human evolution. Beginning in the 1970s, he and colleague Robert Boyd were among the scholars who laid the foundation of cultural evolutionary theory. This work has been hugely influential in the development of dual-inheritance theory, which looks at how genes and culture coevolve. His books with Robert Boyd include Culture and the Evolutionary Process and Not by Genes Alone. His current research is focused on cultural evolution, the origins of tribal and larger scale cooperation, and the origins of agriculture. Read More Read Less