I received my doctorate in anthropology from the University of California-Santa Barbara in 1978. Most of my research is on native peoples of the Venezuelan Amazon (Yanomamö & Ye'kwana) with funding from the NSF, LSB Leakey Foundation, and Harry Frank Guggenheim Foundation. My research interests are in behavioral ecology, food & labor exchange, human ecology, marriage, and kin and parental investment. I regularly teach courses on social structure, contentious issues in anthropology, warfare, and introductory cultural anthropology. I am past-president of the Evolutionary Anthropology Society of the American Anthropological Association, consulting editor for Human Nature, and for ten years I served as treasurer of the Human Behavior and Evolution Society.
Currently I am working on an NSF funded project with my colleague Napoleon Chagnon (University of Missouri) entitled "Collaborative Research: Demographic and Genealogical Dimensions of Cultural and Biological Success," Our project has two objectives. The first is to make the Yanomamo demographic and genealogical data base available via the Internet for use by interested social scientists who wish to test a wide variety of theories revolving around kinship, demographic processes, and marriage. The second goal is to test a variety of human evolutionary theories that address how variation in marriage form, marriage duration, and kin support affects the wellbeing and marital and social success of children.