About the Authors

Catherine Hobaiter

Affiliation Centre for Social Learning and Cognitive Evolution and Scottish Primate Research Group, School of Psychology, University of St Andrews, St Andrews, United Kingdom

Richard W. Byrne

rwb@st-andrews.ac.uk

Affiliation Centre for Social Learning and Cognitive Evolution and Scottish Primate Research Group, School of Psychology, University of St Andrews, St Andrews, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CH. Performed the experiments: CH. Analyzed the data: CH RWB. Wrote the paper: CH RWB.