Chimpanzees and humans mimic pupil-size of conspecifics.

Group-living typically provides benefits to individual group members but also confers costs. To avoid incredulity and betrayal and allow trust and cooperation, individuals must understand the intentions and emotions of their group members. Humans attend to other's eyes and from gaze and pupil-s...

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Bibliographic Details
Main Authors: Mariska E Kret, Masaki Tomonaga, Tetsuro Matsuzawa
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC4139319?pdf=render