The Ontogeny of Gap Crossing Behaviour in Bornean Orangutans (Pongo pygmaeus wurmbii)

• Jackie Chappell,

  Affiliation School of Biosciences, University of Birmingham, Birmingham, United Kingdom

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• Abigail C. Phillips,

  Affiliation School of Biosciences, University of Birmingham, Birmingham, United Kingdom

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• Maria A. van Noordwijk,

  Affiliation Anthropological Institute and Museum, University of Zurich, Zurich, Switzerland

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• Tatang Mitra Setia,

  Affiliation Facultas Biologi, Universitas Nasional, Jakarta, Indonesia

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• Susannah K. S. Thorpe

  * E-mail: S.K.Thorpe@bham.ac.uk

  Affiliation School of Biosciences, University of Birmingham, Birmingham, United Kingdom

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