Affiliation: | 1. Department of Ecological Sciences, Faculty of Earth and Life Sciences, Vrije Universiteit Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, The Netherlands;2. Laboratory of Social Evolution and Behavior, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA;3. Howard Hughes Medical Institute, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA |