1. Animal Behavior Graduate Group; University of California; Shields Avenue Davis CA 95616 USA
2. International Institute for Human-Animal Networks; University of California; Davis CA USA
3. Wangari Maathai Institute for Peace and Environmental Studies; University of Nairobi; PO Box 29053-00635 Nairobi Kenya
4. Department of Population Health and Reproduction; School of Veterinary Medicine; University of California; Davis CA USA
5. Western Institute for Food Safety and Security; University of California; Davis CA USA
6. Department of Anthropology; University of California; Davis CA USA