1. Department of Anthropology; Tulane University; New Orleans LA USA
2. Department of Anthropology; University of Calgary; Calgary AB Canada
3. Department of Biology; Duke University; Durham NC USA
4. Institute of Primate Research; National Museums of Kenya; Nairobi Kenya
5. Department of Ecology and Evolutionary Biology; Princeton University; Princeton NJ USA
6. Department of Anthropology; University of North Carolina; Charlotte NC USA
7. Department of Ecology, Evolution and Environmental Biology; Columbia University; New York NY USA
8. Department of Evolutionary Anthropology; Duke University; Durham NC USA
9. The Dian Fossey Gorilla Fund International; Atlanta GA USA
10. Department of Anthropology; University of Wisconsin-Madison; Madison WI USA