About the Authors
- Friederike Range
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* E-mail: friederike.range@univie.ac.at
Affiliations Department of Cognitive Biology, University of Vienna, Vienna, Austria, Wolf Science Center, Ernstbrunn, Austria
- Zsófia Virányi
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Affiliations Department of Cognitive Biology, University of Vienna, Vienna, Austria, Wolf Science Center, Ernstbrunn, Austria
Competing Interests
The authors have declared that no competing interests exist. Altough Royal Canin is supporting the Wolf Science Center with donations, the authors confirm that this does not alter their adherence to all the PLoS ONE policies on sharing data and materials, as detailed online in the guide for authors.
Author Contributions
Conceived and designed the experiments: FR ZsV. Performed the experiments: FR ZsV. Analyzed the data: FR ZsV. Contributed reagents/materials/analysis tools: FR ZsV. Wrote the paper: FR ZsV.