About the Authors

Jonathan S. Friedlaender

To whom correspondence should be addressed. E-mail: jfriedla@temple.edu

Affiliation Anthropology Department, Temple University, Philadelphia, Pennsylvania, United States of America

Françoise R. Friedlaender

Affiliation Independent Researcher, Philadelphia, Pennsylvania, United States of America

Jason A. Hodgson

Current address: Center for the Study of Human Origins and The New York Consortium in Evolutionary Primatology, Department. of Anthropology, New York University, New York, New York, United States of America

Affiliation Anthropology Department, Binghamton University, Binghamton, New York, United States of America

Matthew Stoltz

Affiliation Anthropology Department, Binghamton University, Binghamton, New York, United States of America

George Koki

Affiliation Institute for Medical Research, Goroka, Papua New Guinea

Gisele Horvat

Affiliation Independent Researcher, Philadelphia, Pennsylvania, United States of America

Sergey Zhadanov

Affiliation Anthropology Department, University of Pennsylvania, Philadephia, Pennsylvania, United States of America

Theodore G. Schurr

Affiliation Anthropology Department, University of Pennsylvania, Philadephia, Pennsylvania, United States of America

D. Andrew Merriwether

Affiliation Anthropology Department, Binghamton University, Binghamton, New York, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DM JF. Performed the experiments: TS JH MS SZ. Analyzed the data: FF GH. Wrote the paper: JF FF. Other: Conducted the fieldwork and provided samples: GK.