About the Authors

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

Janelle Wagnild

Affiliation Department of Anthropology, Durham University, Durham, United Kingdom

Emily Wagler

Affiliation Arizona School of Podiatric Medicine, Glendale, Arizona, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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