About the Authors

Peter C. Zee

peterzee@stanford.edu

Current address: Department of Biology, Stanford University, Stanford, United States of America

Affiliation Department of Biology, Indiana University, Bloomington, Indiana, United States of America

James D. Bever

Affiliation Department of Biology, Indiana University, Bloomington, Indiana, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PCZ JDB. Performed the experiments: PCZ JDB. Analyzed the data: PCZ JDB. Contributed reagents/materials/analysis tools: PCZ JDB. Wrote the paper: PCZ JDB.