About the Authors

Daniel Nettle, Melissa Bateson
Centre for Behaviour and Evolution & Institute of Neuroscience, Newcastle University, Newcastle, United Kingdom

Kenneth Nott
Estate Security Service, Newcastle University, Newcastle, United Kingdom

Corresponding Author

daniel.nettle@ncl.ac.uk

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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