About the Authors

Edward J Vowles

Affiliation Department of Zoology, University of Cambridge, Cambridge, United Kingdom

William Amos

Affiliation Department of Zoology, University of Cambridge, Cambridge, United Kingdom

Competing Interests

The authors have declared that no conflicts of interest exist.

Author Contributions

EJV and WA conceived and designed the experiments. EJV performed the experiments and analyzed the data. EJV and WA wrote the paper.