1. O’Neill School of Public and Environmental Affairs, Indiana University, Bloomington, Indiana 47405, United States
2. Department of Anthropology, Indiana University, Bloomington, Indiana 47405, United States
3. Department of Anthropology, Hunter College of the City University of New York, New York, New York 10021, United States
4. Kibale Chimpanzee Project and Department of Human Evolutionary Biology, Harvard University, Cambridge, Massachusetts 02138, United States
5. Center for the Advanced Study of Human Paleobiology, Department of Anthropology, George Washington University, Washington, D.C. 20052, United States
6. Makerere University Biological Field Station, Kibale National Park, Kibale, Uganda
7. Shaanxi Key Laboratory for Animal Conservation, School of Life Sciences, Northwest University, Xi’an 712100, P. R. China
8. School of Life Sciences, University of KwaZulu-Natal, Scottsville, Pietermaritzburg 3629, South Africa
9. Organization for Tropical Studies, San Vito 60803, Costa Rica