Institution: | 1. Department of Psychology, University of York, York, U.K.;2. Budongo Conservation Field Station, Masindi, Uganda;3. Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, U.S.A.;4. Animal Behaviour Group, Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland;5. Université de Neuchâtel, Institut de Biologie, Neuchâtel, Switzerland;6. School of Psychology, University of St Andrews, St Andrews, U.K. |