About the Authors

Joyce F. Benenson

Affiliations Department of Human Evolutionary Biology, Harvard University, Cambridge, Massachusetts, United States of America, Department of Psychology, Emmanuel College, Boston, Massachusetts, United States of America

Henry Markovits

Joyce.Benenson@gmail.com

Affiliation Département de Psychologie, Université du Québec à Montréal, Montreal, Quebec, Canada

Brittney Hultgren

Affiliation Department of Psychology, Emmanuel College, Boston, Massachusetts, United States of America

Tuyet Nguyen

Affiliation Department of Psychology, Emmanuel College, Boston, Massachusetts, United States of America

Grace Bullock

Affiliation Department of Psychology, Emmanuel College, Boston, Massachusetts, United States of America

Richard Wrangham

Affiliation Department of Human Evolutionary Biology, Harvard University, Cambridge, Massachusetts, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JB HM BH TN GB RW. Performed the experiments: JB HM BH TN GB. Analyzed the data: JB HM BH TN GB RW. Wrote the paper: JB HM.