About the Authors
- Zanna Clay
Affiliations School of Psychology, University of St Andrews, St Andrews, Scotland, United Kingdom, Twycross Zoo, Twycross, Atherstone, United Kingdom
- Klaus Zuberbühler
* E-mail: email@example.com
Affiliation School of Psychology, University of St Andrews, St Andrews, Scotland, United Kingdom
The authors have declared that no competing interests exist.
Conceived and designed the experiments: KZ ZC. Performed the experiments: ZC. Analyzed the data: ZC. Contributed reagents/materials/analysis tools: KZ. Wrote the paper: KZ ZC.