About the Authors

Reginia H. Y. Yan

Affiliation Department of Psychology, University of Alberta, Edmonton, Alberta, Canada

Jessica L. Malisch

Affiliation Department of Biology, University of California Riverside, Riverside, California, United States of America

Robert M. Hannon

Affiliation Department of Biology, University of California Riverside, Riverside, California, United States of America

Peter L. Hurd

phurd@ualberta.ca

Affiliation Department of Psychology, University of Alberta, Edmonton, Alberta, Canada

Theodore Garland Jr

Affiliation Department of Biology, University of California Riverside, Riverside, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PLH TGJ. Performed the experiments: RHYY JLM RMH. Analyzed the data: TGJ. Contributed reagents/materials/analysis tools: TGJ. Wrote the paper: PLH TGJ.