About the Authors

Borbála Turcsán

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Supervision, Validation, Writing – original draft, Writing – review & editing

borbala.turcsan@gmail.com

Affiliations Clever Dog Lab, Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna and University of Vienna, Vienna, Austria, Department of Ethology, Eötvös Loránd University, Budapest, Hungary, Research Centre for Natural Sciences, Institute of Cognitive Neuroscience and Psychology, Hungarian Academy of Sciences, Budapest, Hungary

Lisa Wallis

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Writing – review & editing

Affiliations Clever Dog Lab, Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna and University of Vienna, Vienna, Austria, Department of Ethology, Eötvös Loránd University, Budapest, Hungary

Zsófia Virányi

Roles Conceptualization, Funding acquisition, Resources, Supervision, Writing – review & editing

Affiliation Clever Dog Lab, Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna and University of Vienna, Vienna, Austria

Friederike Range

Roles Conceptualization, Funding acquisition, Resources, Supervision, Writing – review & editing

Affiliation Clever Dog Lab, Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna and University of Vienna, Vienna, Austria

Corsin A. Müller

Roles Formal analysis, Methodology, Supervision, Writing – review & editing

Affiliation Clever Dog Lab, Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna and University of Vienna, Vienna, Austria

Ludwig Huber

Roles Funding acquisition, Project administration, Supervision, Writing – review & editing

Affiliation Clever Dog Lab, Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna and University of Vienna, Vienna, Austria

Stefanie Riemer

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Project administration, Writing – original draft, Writing – review & editing

Affiliations Clever Dog Lab, Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine Vienna, Medical University of Vienna and University of Vienna, Vienna, Austria, Division of Animal Welfare, Vetsuisse Faculty, University of Bern, Bern, Switzerland

Competing Interests

The authors have declared that no competing interests exist. Royal Canin had no say in the planning of the research, data collection, analyses and publication. Royal Canin pays only for the rent of the Clever Dog Lab (Vienna, Austria) for commercial reasons. This does not alter our adherence to PLOS ONE policies on sharing data and materials.