About the Authors

Luís M. A. Bettencourt

Contributed equally to this work with: Luís M. A. Bettencourt, Ruy M. Ribeiro

lmbett@lanl.gov

Affiliations Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America, Santa Fe Institute, Santa Fe, New Mexico, United States of America

Ruy M. Ribeiro

Contributed equally to this work with: Luís M. A. Bettencourt, Ruy M. Ribeiro

Affiliation Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RR LB. Performed the experiments: RR LB. Analyzed the data: RR LB. Wrote the paper: RR LB.