About the Authors

Jennifer V. Schmidt

jvs@uic.edu

Affiliations The Department of Biological Sciences, University of Illinois at Chicago, Chicago, Illinois, United States of America, The Shark Research Institute, Princeton, New Jersey, United States of America

Claudia L. Schmidt

Affiliation The Department of Biological Sciences, University of Illinois at Chicago, Chicago, Illinois, United States of America

Fusun Ozer

Affiliation The Department of Biological Sciences, University of Illinois at Chicago, Chicago, Illinois, United States of America

Robin E. Ernst

Affiliation The Shark Research Institute, Princeton, New Jersey, United States of America

Kevin A. Feldheim

Affiliation The Pritzker Laboratory for Molecular Systematics and Evolution, The Field Museum, Chicago, Illinois, United States of America

Mary V. Ashley

Affiliation The Department of Biological Sciences, University of Illinois at Chicago, Chicago, Illinois, United States of America

Marie Levine

Affiliation The Shark Research Institute, Princeton, New Jersey, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JVS FO REE MA ML. Performed the experiments: JVS CLS FO KAF. Analyzed the data: JVS FO KAF MA. Contributed reagents/materials/analysis tools: JVS REE KAF ML. Wrote the paper: JVS MA.