I am an evolutionary biologist interested in the evolution and maintenance of molecular diversity in primates.

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My focus is on the diversity of glycans, the oligo- and polysaccharides that cover all living cells and are also secreted by most organisms.

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In my courses, I explore the profoundly cultural nature of human biology. My goal is to introduce students to the many ways that human culture has shaped human biology.

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The three areas where this is most apparent are disease, reproduction and diet.

I also help running CARTA, the UCSD/Salk Center for Academic Research and Training in Anthropgeny, an organization dedicated to exploring and explaining the origins of the human phenomenon.