Social Use of Facial Expressions in Hylobatids

• Linda Scheider ,

  * E-mail: scheider@zedat.fu-berlin.de

  Affiliation Dept. of Education and Psychology, Freie Universität Berlin, Berlin, Germany

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• Bridget M. Waller,

  Affiliation Dept. of Psychology, University of Portsmouth, Portsmouth, United Kingdom

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• Leonardo Oña,

  Affiliation Dept. of Natural Science and Mathematics, University of Groningen, Groningen, The Netherlands

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• Anne M. Burrows,

  Affiliations Dept. of Physical Therapy, Duquesne University, Pittsburgh, Pennsylvania, United States of America, Dept. of Anthropology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America

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• Katja Liebal

  Affiliation Dept. of Education and Psychology, Freie Universität Berlin, Berlin, Germany

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