About the Authors

Désirée Brucks

desiree.brucks@vetmeduni.ac.at

Affiliation Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine, Vienna, Medical University of Vienna, University of Vienna, Vienna, Austria

Jennifer L. Essler

Affiliation Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine, Vienna, Medical University of Vienna, University of Vienna, Vienna, Austria

Sarah Marshall-Pescini

Affiliation Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine, Vienna, Medical University of Vienna, University of Vienna, Vienna, Austria

Friederike Range

Affiliation Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine, Vienna, Medical University of Vienna, University of Vienna, Vienna, Austria

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DB JLE SMP FR. Performed the experiments: DB JLE. Analyzed the data: DB JLE. Wrote the paper: DB SMP FR.