Affiliative function of the silent bared-teeth display in moor macaques (Macaca maurus): Further evidence for the particular status of sulawesi macaques

  • O. Petit
  • B. Thierry


The silent bared-teeth display is described in a captive group of Moor macaques (Macaca maurus). It occurs with either closed or open mouth and is observed in both affinitive and playful interactions. It does not appear to convey specific information about the social status of partners and should be viewed as a signal advertising the emitter's peaceful intentions. This is consistent with what is known for other species of macaques on Sulawesi island.

Key Words

facial expression symmetry evolution Macaca maurus 


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Copyright information

© Plenum Publishing Corporation 1992

Authors and Affiliations

  • O. Petit
    • 1
  • B. Thierry
    • 1
  1. 1.Laboratoire de Psychophysiologie, CNRS (URA 1295)Université Louis PasteurStrasbourgFrance

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