About the Authors

Lucy P. Birkett

Affiliation School of Anthropology and Conservation, University of Kent, Canterbury, United Kingdom

Nicholas E. Newton-Fisher

n.e.newton-fisher@kent.ac.uk

Affiliation School of Anthropology and Conservation, University of Kent, Canterbury, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: LPB NNF. Analyzed the data: LPB NNF. Wrote the paper: LPB NNF.