About the Authors

Paul Davies

Affiliation Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom

David R. Brown

bssdrb@bath.ac.uk

Affiliation Department of Biology and Biochemistry, University of Bath, Bath, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DRB. Performed the experiments: PD DRB. Analyzed the data: PD DRB. Wrote the paper: PD DRB.