About the Authors

Siobhán M. Mattison

smattiso@bu.edu

Affiliations Department of Biology and Women’s, Gender, and Sexuality Studies Program, Boston University, 5 Cummington Mall, Boston, Massachusetts, 02215, United States of America, Department of Anthropology, University of Auckland, Private Bag 92019, Auckland Centre, 1142, New Zealand

Melissa J. Brown

Affiliations Harvard-Yenching Institute, 2 Divinity Ave, Cambridge, Massachusetts, 02138, United States of America, Minnesota Population Center, University of Minnesota-Twin Cities, 50 Willey Hall, 225 – 19th Avenue South, Minneapolis, Minnesota, 55455, United States of America

Bruce Floyd

Affiliation Department of Anthropology, University of Auckland, Private Bag 92019, Auckland Centre, 1142, New Zealand

Marcus W. Feldman

Affiliation Department of Biology and Morrison Institute for Population and Resource Studies, Stanford University, Stanford, California, 94305, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SMM MJB MWF. Analyzed the data: SMM. Wrote the paper: SMM MJB BF MWF. Obtained permission to use data for this analysis: MJB.