About the Authors

Janelle Wagnild

Affiliation Department of Biology, Seattle Pacific University, Seattle, Washington, United States of America

Cara M. Wall-Scheffler

cwallsch@spu.edu

Affiliations Department of Biology, Seattle Pacific University, Seattle, Washington, United States of America, Department of Anthropology, University of Washington, Seattle, Washington, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CMWS. Performed the experiments: JW. Analyzed the data: CMWS. Contributed reagents/materials/analysis tools: CMWS. Wrote the paper: JW CMWS.