About the Authors

Amanda Tan

wytan5@e.ntu.edu.sg

Affiliation Division of Psychology, School of Humanities and Social Sciences, Nanyang Technological University, Singapore, 637322, Singapore

Say Hoon Tan

wytan5@e.ntu.edu.sg

Affiliation Division of Psychology, School of Humanities and Social Sciences, Nanyang Technological University, Singapore, 637322, Singapore

Dhaval Vyas

Affiliation Graduate Degree Program in Ecology, Colorado State University, Fort Collins, Colorado, 80523, United States of America

Suchinda Malaivijitnond

Affiliation National Primate Research Centre of Thailand and Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand

Michael D. Gumert

Affiliations Division of Psychology, School of Humanities and Social Sciences, Nanyang Technological University, Singapore, 637322, Singapore, National Primate Research Centre of Thailand and Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AT ST MG. Performed the experiments: AT ST MG. Analyzed the data: AT. Contributed reagents/materials/analysis tools: DV MG SM AT. Wrote the paper: AT MG DV SM.