About the Authors

Céline Tallet

celine.tallet@rennes.inra.fr

Affiliations Institute of Animal Science, Ethology Department, Prague, Czechia, INRA, UMR1348 PEGASE, Saint-Gilles, France, Agrocampus Rennes, UMR1348 PEGASE, Rennes, France

Pavel Linhart

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

Richard Policht

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

Kurt Hammerschmidt

Affiliation Cognitive Ethology Lab, German Primate Center, Göttingen, Germany

Petr Šimeček

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

Petra Kratinova

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

Marek Špinka

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

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CT MŠ PK RP. Performed the experiments: CT PK. Analyzed the data: CT PL RP PŠ KH. Contributed reagents/materials/analysis tools: RP KH PŠ MŠ PL. Wrote the paper: CT PL MŠ PK RP KH PŠ.