About the Authors

Jason M. Kamilar

jason.kamilar@yale.edu

Affiliations Department of Anthropology, Yale University, New Haven, Connecticut, United States of America, Yale Molecular Anthropology Laboratory, Yale University, New Haven, Connecticut, United States of America

Kathleen M. Muldoon

Affiliations Department of Anatomy, Dartmouth Medical School, Hanover, New Hampshire, United States of America, Department of Anthropology, Dartmouth College, Hanover, New Hampshire, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JMK KMM. Analyzed the data: JMK. Wrote the paper: JMK KMM.