About the Authors

Rick W. A. Smith

rickwasmith@utexas.edu

Affiliation Department of Anthropology, University of Texas at Austin, Austin, Texas, United States of America

Cara Monroe

Affiliations Department of Anthropology, Washington State University, Pullman, Washington, United States of America, Department of Anthropology, University of California Santa Barbara, Santa Barbara, California, United States of America

Deborah A. Bolnick

Affiliations Department of Anthropology, University of Texas at Austin, Austin, Texas, United States of America, Population Research Center, University of Texas at Austin, Austin, Texas, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RWAS CM DAB. Performed the experiments: RWAS CM. Analyzed the data: RWAS CM DAB. Contributed reagents/materials/analysis tools: RWAS DAB CM. Wrote the paper: RWAS CM DAB.