1. Department of Anthropology, University of California, Los Angeles, Los Angeles, CA, USA.
2. Department of Human Behavior, Ecology and Culture, Max Planck Institute of Evolutionary Anthropology, Leipzig, Germany.
3. School of Anthropology, University of Arizona, Tucson, AZ, USA.
4. Center for Species Survival, Smithsonian Conservation Biology Institute, Front Royal, VA, USA.
5. Interim Group Primatology, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
6. Comparative BioCognition, Institute of Cognitive Science, University of Osnabrück, Osnabrück, Germany.
7. Department of Anthropology, University of New Mexico, Albuquerque, NM, USA.
8. Biology Department, McLennan Community College, Waco, TX, USA.
9. Department of Anthropology, Yale University, New Haven, CT, USA.
10. Department of Anthropology, University of Michigan, Ann Arbor, MI, USA.
11. Institute of Human Origins, School of Human Evolution and Social Change, Arizona State University, Tempe, AZ, USA.