1. Junior Research Group for Primate Sexual Selection, Reproductive Biology Unit German Primate Center Göttingen Germany
2. Courant Research Centre for the Evolution of Social Behaviour Georg‐August University Göttingen Germany
3. Department Ecology, Physiology and Ethology, IPHC, Centre National de la Recherche Scientifique Université de Strasbourg Strasbourg France
4. Department of Psychology, Centre for Comparative and Evolutionary Psychology University of Portsmouth United Kingdom
5. Faculty of Veterinary Medicine Bogor Agricultural University Bogor Indonesia
6. Reproductive Biology Unit German Primate Center Göttingen Germany