1. Private Bag 4800, School of Biological Sciences University of Canterbury Christchurch New Zealand
2. Institut de Neurociències, Universitat Autònoma de Barcelona Bellaterra Barcelona 08193 Spain
3. ICREA Pg. Lluís Companys, 23 Barcelona Spain
4. School of Psychology The University of Auckland Private Bag 92019 Auckland 1142 New Zealand
5. Departments of Anthropology and Psychology UCLA 375 Portola Plaza Los Angeles CA 90095 USA
6. Department of Psychology University of South Alabama 75 S. University Blvd. Mobile AL 36688 USA
7. Domestication Lab Konrad Lorenz Institute of Ethology, University of Veterinary Medicine, Vienna Savoyenstraße 1a Vienna A‐1160 Austria
8. Scottish Oceans Institute, School of Biology University of St. Andrews St Andrews KY16 8LB UK
9. Department of History & Philosophy of Science University of Pittsburgh 1101 Cathedral of Learning, 4200 Fifth Ave Pittsburgh PA 15260 USA