About the Authors

Pavel Linhart

linhart.pavel@vuzv.cz

Affiliation Department of Ethology, Institute of Animal Science, Prague, Czechia

Victoria F. Ratcliffe

Affiliation School of Psychology, University of Sussex, Brighton, United Kingdom

David Reby

Affiliation School of Psychology, University of Sussex, Brighton, United Kingdom

Marek Špinka

Affiliation Department of Ethology, Institute of Animal Science, Prague, Czechia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PL MS. Performed the experiments: PL. Analyzed the data: PL VFR. Contributed reagents/materials/analysis tools: MS DR. Wrote the paper: PL VFR DR MS.