About the Authors
- Nicholas H. Dodman
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Roles Conceptualization, Data curation, Funding acquisition, Investigation, Methodology, Project administration, Writing – original draft, Writing – review & editing
Affiliation Center for Canine Behavior Studies, Salisbury, CT, United States of America
- Dorothy C. Brown
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Roles Formal analysis, Investigation, Methodology, Writing – review & editing
Affiliation Martingale Consulting, Media, PA, United States of America
- James A. Serpell
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Roles Conceptualization, Formal analysis, Investigation, Methodology, Project administration, Writing – original draft, Writing – review & editing
* E-mail: serpell@vet.upenn.edu
Affiliation School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, United States of America
Competing Interests
The authors are not aware of any competing interests. The Simon Foundation is a nonprofit foundation that provided research grants to Tufts University and The University of Pennsylvania to support the study. Our association with this entity does not alter our adherence to all PLOS ONE policies on sharing data and materials.