About the Authors
- Caleb Marshall Brown
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, Canada
- Anthony P. Russell
- Department of Biological Sciences, University of Calgary, Calgary, Alberta, Canada
Funding for travel to Mongolia was provided in part by Lubrizol Corp. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.
Conceived and designed the experiments: CMB. Performed the experiments: CMB APR. Analyzed the data: CMB APR. Wrote the paper: CMB APR.