About the Authors

Anna Kis

Contributed equally to this work with: Anna Kis, Melinda Bence

vargane.kis.anna@ttk.mta.hu (AK); bencemelinda@gmail.com (MB)

Affiliations 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

Melinda Bence

Contributed equally to this work with: Anna Kis, Melinda Bence

vargane.kis.anna@ttk.mta.hu (AK); bencemelinda@gmail.com (MB)

Affiliation Comparative Ethology Research Group, MTA-ELTE, Budapest, Hungary

Gabriella Lakatos

Affiliation Comparative Ethology Research Group, MTA-ELTE, Budapest, Hungary

Enikő Pergel

Affiliation Department of Medical Chemistry, Molecular Biology and Pathobiochemistry, Semmelweis University, Budapest, Hungary

Borbála Turcsán

Affiliations 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

Jolanda Pluijmakers

Affiliation Department of Ethology and Animal Welfare, Catholic University College Ghent, Brugge, Belgium

Judit Vas

Affiliation Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences, Ås, Norway

Zsuzsanna Elek

Affiliation Department of Medical Chemistry, Molecular Biology and Pathobiochemistry, Semmelweis University, Budapest, Hungary

Ildikó Brúder

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

Levente Földi

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

Mária Sasvári-Székely

Affiliation Department of Medical Chemistry, Molecular Biology and Pathobiochemistry, Semmelweis University, Budapest, Hungary

Ádám Miklósi

Affiliations Department of Ethology, Eötvös Loránd University, Budapest, Hungary, Comparative Ethology Research Group, MTA-ELTE, Budapest, Hungary

Zsolt Rónai

Affiliation Department of Medical Chemistry, Molecular Biology and Pathobiochemistry, Semmelweis University, Budapest, Hungary

Enikő Kubinyi

Affiliation Comparative Ethology Research Group, MTA-ELTE, Budapest, Hungary

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AK MB GL MSS ÁM ZR EK. Performed the experiments: AK MB GL EP BT JP JV ZE IB LF. Analyzed the data: AK MB. Wrote the paper: AK MB. Discussed the study and provided comments on the manuscript: all authors.