About the Authors

Taylor Reiter

Affiliation Human Evolutionary Biology, Harvard University, 11 Divinity Avenue, Cambridge, MA, 02138, United States of America

Evelyn Jagoda

Affiliation Human Evolutionary Biology, Harvard University, 11 Divinity Avenue, Cambridge, MA, 02138, United States of America

Terence D. Capellini

tcapellini@fas.harvard.edu

Affiliation Human Evolutionary Biology, Harvard University, 11 Divinity Avenue, Cambridge, MA, 02138, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TR TDC. Performed the experiments: TR. Analyzed the data: TR EJ. Contributed reagents/materials/analysis tools: TR EJ TDC. Wrote the paper: TR EJ TDC. Obtained permission and samples from dog breeders: TR.