About the Authors

Mark T. Bowler

mtb21@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, Fife, Scotland

Hannah M. Buchanan-Smith

Affiliation Psychology, School of Natural Sciences, and Scottish Primate Research Group, University of Stirling, Stirling, Stirlingshire, Scotland

Andrew Whiten

Affiliation Centre for Social Learning and Cognitive Evolution, and Scottish Primate Research Group, School of Psychology, University of St Andrews, St. Andrews, Fife, Scotland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MB HBS AW. Performed the experiments: MB. Analyzed the data: MB. Contributed reagents/materials/analysis tools: MB HBS AW. Wrote the paper: MB HBS AW.