Sumatran Lar Gibbon (Hylobates lar vestitus, german: Weißhandgibbon, french: Gibbon à mains blanches). It is endemic to Sumatra. (716k)
Here are the pictures of Lar Gibbon (Hylobates lar) with links to the pages on which they appear, links to the full sized picture, and the description of the picture with links to the entry in iNaturalist (inaturalist.org)
All pictures are © Dr. Günther Eichhorn, unless otherwise noted.
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