About the Authors
- Teresa Romero
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* E-mail: tromero@darwin.c.u-tokyo.ac.jp
Affiliations Department of Cognitive and Behavioral Science, The University of Tokyo, Tokyo, Japan, Living Links, Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, United States of America
- Miguel A. Castellanos
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Affiliation Department of Methodology of Social Sciences, Faculty of Psychology, Complutense University of Madrid, Madrid, Spain
- Frans B. M. de Waal
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Affiliation Living Links, Yerkes National Primate Research Center, Emory University, Atlanta, Georgia, United States of America
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: TR FBMdW. Performed the experiments: TR FBMdW. Analyzed the data: TR MAC FBMdW. Wrote the paper: TR MAC FBMdW.