About the Authors

John A. Bender

jbender@case.edu

Affiliation Department of Biology, Case Western Reserve University, Cleveland, Ohio, United States of America

Elaine M. Simpson

Affiliation Department of Biology, Case Western Reserve University, Cleveland, Ohio, United States of America

Roy E. Ritzmann

Affiliation Department of Biology, Case Western Reserve University, Cleveland, Ohio, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

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