About the Authors

David Pietraszewski

davidpietraszewski@gmail.com

Current address: Department of Psychology, Yale University, New Haven, Connecticut, United States of America

Affiliations Center for Evolutionary Psychology, University of California Santa Barbara, Santa Barbara, California, United States of America, Department of Psychological & Brain Sciences, University of California Santa Barbara, Santa Barbara, California, 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 & 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: DP LC JT. Performed the experiments: DP. Analyzed the data: DP. Wrote the paper: DP LC JT.