About the Authors

Sean A. Rands

sean.rands@bristol.ac.uk

Affiliation Centre for Behavioural Biology, School of Clinical Veterinary Science, University of Bristol, Bristol, United Kingdom

Heather M. Whitney

Affiliation Department of Plant Sciences, University of Cambridge, Cambridge, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SR HW. Performed the experiments: SR. Analyzed the data: SR. Wrote the paper: SR HW.