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Facial expression is a group cohesion solution

Published online by Cambridge University Press:  27 November 2025

Bridget M. Waller*
Affiliation:
Nottingham Trent University , Nottingham, UK bridget.waller@ntu.ac.uk jamie.whitehouse@ntu.ac.uk eithne.kavanagh@ntu.ac.uk
Jamie Whitehouse
Affiliation:
Nottingham Trent University , Nottingham, UK bridget.waller@ntu.ac.uk jamie.whitehouse@ntu.ac.uk eithne.kavanagh@ntu.ac.uk
Eithne Kavanagh
Affiliation:
Nottingham Trent University , Nottingham, UK bridget.waller@ntu.ac.uk jamie.whitehouse@ntu.ac.uk eithne.kavanagh@ntu.ac.uk
*
*Corresponding author.

Abstract

Facial expression has evolved as a solution to the primate group living problem. A growing body of empirical evidence suggests that the evolution of facial expression has been driven by the need to bond. Dunbar’s theories of group cohesion are therefore key to understanding primate (including human) facial expression.

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Type
Open Peer Commentary
Copyright
© The Author(s), 2025. Published by Cambridge University Press

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