About the Authors
- Derek W. Larson, Philip J. Currie
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada
The authors have declared that no competing interests exist.
Conceived and designed the experiments: DWL. Performed the experiments: DWL. Analyzed the data: DWL. Contributed reagents/materials/analysis tools: DWL PJC. Wrote the paper: DWL PJC.