About the Authors

Isabelle B. Laumer

Roles Conceptualization, Formal analysis, Methodology, Writing – original draft

isabelle.laumer@univie.ac.at

Affiliation Department of Cognitive Biology, University of Vienna, Vienna, Austria

Alice M. I. Auersperg

Roles Conceptualization, Writing – review & editing

Affiliation Messerli Research Institute, University of Veterinary Medicine, Vienna, Medical University of Vienna, University of Vienna, Vienna, Austria

Thomas Bugnyar

Roles Writing – review & editing

Affiliation Department of Cognitive Biology, University of Vienna, Vienna, Austria

Josep Call

Roles Formal analysis, Writing – review & editing

Affiliations School of Psychology and Neuroscience, University of St. Andrews, St. Andrews, United Kingdom, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany

Competing Interests

The authors have declared that no competing interests exist.