About the Authors

Anthony D Barnosky

To whom correspondence should be addressed. E-mail: barnosky@berkeley.edu

Affiliations Department of Integrative Biology and Museum of Paleontology, University of California, Berkeley, California, United States of America, Museum of Vertebrate Zoology, University of California, Berkeley, California, United States of America

Marc A Carrasco

Affiliation Department of Integrative Biology and Museum of Paleontology, University of California, Berkeley, California, United States of America

Edward B Davis

Affiliation Department of Integrative Biology and Museum of Paleontology, University of California, Berkeley, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

ADB, MAC, and EBD conceived and designed the experiments. ADB, MAC, and EBD performed the experiments. ADB, MAC, and EBD analyzed the data. ADB wrote the paper.