About the Authors

Sean D. Twiss

s.d.twiss@durham.ac.uk

Affiliation School of Biological and Biomedical Sciences, Durham University, Durham, United Kingdom

Charlotte Cairns

Affiliation School of Biological and Biomedical Sciences, Durham University, Durham, United Kingdom

Ross M. Culloch

Affiliations School of Biological and Biomedical Sciences, Durham University, Durham, United Kingdom, Sea Mammal Research Unit, Scottish Oceans Institute, University of St Andrews, St Andrews, Fife, United Kingdom

Shane A. Richards

Affiliation School of Biological and Biomedical Sciences, Durham University, Durham, United Kingdom

Patrick P. Pomeroy

Affiliation Sea Mammal Research Unit, Scottish Oceans Institute, University of St Andrews, St Andrews, Fife, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SDT PPP. Performed the experiments: SDT PPP CC RMC. Analyzed the data: SDT CC SAR. Contributed reagents/materials/analysis tools: SDT PPP CC SAR. Wrote the paper: SDT. Commented on manuscript: PPP SAR RMC CC.