About the Authors

Tamás Faragó

Affiliation Department of Ethology, Eötvös Loránd University, Budapest, Hungary

Péter Pongrácz

peter.celeste.pongracz@gmail.com

Affiliation Department of Ethology, Eötvös Loránd University, Budapest, Hungary

Ádám Miklósi

Affiliation Department of Ethology, Eötvös Loránd University, Budapest, Hungary

Ludwig Huber

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

Zsófia Virányi

Affiliations Department of Cognitive Biology, University of Vienna, Vienna, Austria, Clever Dog Lab, Vienna, Austria

Friederike Range

Affiliations Department of Cognitive Biology, University of Vienna, Vienna, Austria, Clever Dog Lab, Vienna, Austria

Competing Interests

The authors have declared that no competing interests exist. Royal Canin has no say in planning of research, data collection, analyses and publication. Royal Canin pays only for the rent of the Clever Dog Lab (Vienna, Austria) for commercial reasons.

Author Contributions

Conceived and designed the experiments: PP TF ÁM ZV LH FR. Performed the experiments: TF. Analyzed the data: TF. Wrote the paper: TF PP ÁM FR.