About the Authors
- Ellen Evers
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Affiliation Animal Ecology, Utrecht University, Utrecht, the Netherlands
- Han de Vries
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Affiliation Animal Ecology, Utrecht University, Utrecht, the Netherlands
- Berry M. Spruijt
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Affiliation Animal Ecology, Utrecht University, Utrecht, the Netherlands
- Elisabeth H. M. Sterck
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* E-mail: e.h.m.sterck@uu.nl
Affiliations Animal Ecology, Utrecht University, Utrecht, the Netherlands, Ethology Research, Biomedical Primate Research Center, Rijswijk, the Netherlands
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: EE HdV. Performed the experiments: EE. Analyzed the data: EE. Wrote the paper: EE HdV BS ES.