About the Authors

Martin Fieder

martin.fieder@univie.ac.at

Affiliation Department of Anthropology, University of Vienna, Vienna, Austria

Susanne Huber

Affiliations Department of Anthropology, University of Vienna, Vienna, Austria, Research Institute of Wildlife Ecology, University of Veterinary Medicine Vienna, Vienna, Austria

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MF SH. Analyzed the data: MF. Wrote the paper: MF SH.