About the Authors

Anna Gergely

Contributed equally to this work with: Anna Gergely, Anna B. Compton

anna.gergely66@gmail.com

Affiliation Institute of Cognitive Neuroscience and Psychology, Hungarian Academy of Sciences, Budapest, Hungary

Anna B. Compton

Contributed equally to this work with: Anna Gergely, Anna B. Compton

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

Ruth C. Newberry

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

Ádám Miklósi

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

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AG ABC RCN ÁM. Performed the experiments: AG ABC. Analyzed the data: AG ABC RCN. Contributed reagents/materials/analysis tools: AG ABC ÁM. Wrote the paper: AG RCN ÁM.