About the Authors

Steven A. Frank

safrank@uci.edu

Affiliations Department of Ecology and Evolutionary Biology, University of California, Irvine, California, United States of America, Department of Ecology and Evolution, University of Chicago, Chicago, Illinois, United States of America

Marsha Rich Rosner

Affiliation Ben May Department for Cancer Research, University of Chicago, Chicago, Illinois, United States of America

Competing Interests

The authors have declared that no competing interests exist.