About the Authors

Daniel M. T. Fessler, Colin Holbrook
Department of Anthropology and Center for Behavior, Evolution, and Culture, University of California Los Angeles, Los Angeles, California, United States of America

Corresponding Author


Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DF CH. Performed the experiments: DF CH. Analyzed the data: CH. Wrote the paper: DF CH.