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An Associate Professor of Earth Systems Science and a Senior Fellow at the Woods Institute for the Environment, I am a biological anthropologist with interests in biodemography, life history theory, and the human ecology of infectious disease. Biological anthropology is the study of the origins and maintenance of human diversity and the axis of diversity that defines my research interests is the stunning variation across populations and through time in the fundamental quantities of demography: age-specific mortality and fertility rates.



I maintain a portfolio of research projects that combine themes from human ecology, infectious disease dynamics, social network analysis, and biodemography. A very incomplete sampling of this portfolio can be found below.


I teach a variety of classes in the Department of Earth Systems Sciences, some of which are cross-listed in Human Biology. I have collected here course descriptions as they appear in the Stanford Bulletin, some other contextual material where appropriate, syllabi, and some other assorted hand-outs.

In addition to my Stanford teaching, I co-organize a summer workshop on formal demography that draws mostly Ph.D. students from NICHD-supported population centers throughout