About the Authors

Justin R. Garcia

justin.r.garcia@gmail.com

Affiliations Laboratory of Evolutionary Anthropology and Health, Binghamton University, Binghamton, New York, United States of America, Department of Biological Sciences, Binghamton University, Binghamton, New York, United States of America, Department of Anthropology, Binghamton University, Binghamton, New York, United States of America, Institute for Evolutionary Studies, Binghamton University, Binghamton, New York, United States of America

James MacKillop

Affiliations Department of Psychology, University of Georgia, Athens, Georgia, United States of America, Center for Alcohol and Addiction Studies, Brown University, Providence, Rhode Island, United States of America

Edward L. Aller

Affiliations Laboratory of Evolutionary Anthropology and Health, Binghamton University, Binghamton, New York, United States of America, Department of Biological Sciences, Binghamton University, Binghamton, New York, United States of America

Ann M. Merriwether

Affiliations Institute for Evolutionary Studies, Binghamton University, Binghamton, New York, United States of America, Department of Psychology, Binghamton University, Binghamton, New York, United States of America, Department of Human Development, Binghamton University, Binghamton, New York, United States of America

David Sloan Wilson

Affiliations Department of Biological Sciences, Binghamton University, Binghamton, New York, United States of America, Department of Anthropology, Binghamton University, Binghamton, New York, United States of America, Institute for Evolutionary Studies, Binghamton University, Binghamton, New York, United States of America

J. Koji Lum

Affiliations Laboratory of Evolutionary Anthropology and Health, Binghamton University, Binghamton, New York, United States of America, Department of Biological Sciences, Binghamton University, Binghamton, New York, United States of America, Department of Anthropology, Binghamton University, Binghamton, New York, United States of America, Institute for Evolutionary Studies, 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: JRG AMM DSW JKKL. Performed the experiments: JRG ELA. Analyzed the data: JRG JM. Contributed reagents/materials/analysis tools: JKKL. Wrote the paper: JRG JM.