About the Authors

Max M. Krasnow

Contributed equally to this work with: Max M. Krasnow, Andrew W. Delton

krasnow@fas.harvard.edu

Affiliation Department of Psychology, Harvard University, Cambridge, Massachusetts, United States of America

Andrew W. Delton

Contributed equally to this work with: Max M. Krasnow, Andrew W. Delton

Affiliation Department of Political Science, College of Business, Center for Behavioral Political Economy, Stony Brook University, Stony Brook, New York, United States of America

Leda Cosmides

Affiliations Center for Evolutionary Psychology, University of California Santa Barbara, Santa Barbara, California, United States of America, Department of Psychological and Brain Sciences, University of California Santa Barbara, Santa Barbara, California, United States of America

John Tooby

Affiliations Center for Evolutionary Psychology, University of California Santa Barbara, Santa Barbara, California, United States of America, Department of Anthropology, University of California Santa Barbara, Santa Barbara, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MMK AWD LC JT. Performed the experiments: MMK AWD. Analyzed the data: MMK AWD. Wrote the paper: MMK AWD LC JWD.