About the Authors
- Stefano Ghirlanda
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* E-mail: dr.ghirlanda@gmail.com
Affiliations Department of Psychology, Brooklyn College, Brooklyn, New York, United States of America, Centre for the Study of Cultural Evolution, University of Stockholm, Stockholm, Sweden
- Alberto Acerbi
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Affiliations Centre for the Study of Cultural Evolution, University of Stockholm, Stockholm, Sweden, Department of Archaeology and Anthropology, University of Bristol, Bristol, United Kingdom
- Harold Herzog
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Affiliation Department of Psychology, Western Carolina University, Cullowhee, North Carolina, United States of America
- James A. Serpell
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Affiliation School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: SG AA. Performed the experiments: SG AA. Analyzed the data: SG AA. Contributed reagents/materials/analysis tools: SG AA HH JS. Wrote the paper: SG AA HH JS.