About the Authors

Jason B. Wolf

jason@evolutionarygenetics.org

Affiliation Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom

James M. Cheverud

Affiliation Department of Anatomy and Neurobiology, Washington University School of Medicine, St Louis, Missouri, United States of America

Charles Roseman

Affiliation Department of Anthropology, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America

Reinmar Hager

Affiliation Faculty of Life Sciences, University of Manchester, Manchester, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JW JC. Performed the experiments: JC. Analyzed the data: JW RH. Contributed reagents/materials/analysis tools: JW JC CR. Wrote the paper: JW JC RH.