About the Authors

Biren A. Patel

birenpat@usc.edu

Affiliation Department of Cell and Neurobiology, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America

Angela M. Horner

Affiliation Department of Ecology and Evolutionary Biology, Brown University, Providence, Rhode Island, United States of America

Nathan E. Thompson

Affiliation Department of Anatomical Sciences, Stony Brook University, Stony Brook, New York, United States of America

Louise Barrett

Affiliations Psychology Department, University of Lethbridge, Lethbridge, Alberta, Canada, Applied Behavioural Ecology and Ecosystem Research Unit, University of South Africa, Florida, South Africa

S. Peter Henzi

Affiliations Psychology Department, University of Lethbridge, Lethbridge, Alberta, Canada, Applied Behavioural Ecology and Ecosystem Research Unit, University of South Africa, Florida, South Africa

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: BAP LB SPH. Performed the experiments: LB SPH. Analyzed the data: BAP AMH NET. Contributed reagents/materials/analysis tools: BAP AMH NET LB SPH. Wrote the paper: BAP AMH NET.