About the Authors

Scott G. Ortman

scott.ortman@colorado.edu

Affiliations Department of Anthropology, University of Colorado Boulder, Boulder, Colorado, United States of America, Santa Fe Institute, Santa Fe, New Mexico, United States of America

Andrew H. F. Cabaniss

Affiliations Santa Fe Institute, Santa Fe, New Mexico, United States of America, Classics Department, University of North Carolina Chapel Hill, Chapel Hill, North Carolina, United States of America

Jennie O. Sturm

Affiliation Department of Anthropology, University of New Mexico, Albuquerque, New Mexico, United States of America

Luís M. A. Bettencourt

Affiliation Santa Fe Institute, Santa Fe, New Mexico, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SO AC LB. Performed the experiments: SO AC LB. Analyzed the data: SO AC LB. Contributed reagents/materials/analysis tools: SO AC JS. Wrote the paper: SO AC LB.