About the Authors

Robert Noble

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

Mario Recker

mario.recker@zoo.ox.ac.uk

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

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RN MR. Performed the experiments: RN. Analyzed the data: RN. Wrote the paper: RN MR.