Fiona Rogers / Sumatran Orangutan (Pongo abelii) twenty-six year old male, named Halik, Gunung Leuser National Park, Sumatra, Indonesia
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Cyril Ruoso / Sumatran Orangutan (Pongo abelii) mother and young, Gunung Leuser National Park, Sumatra, Indonesia
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Konrad Wothe / Orang-Utan (Pongo pygmaeus) lowering itself from a branch head-first into water. Gunung Leuser National Park, Sumatra.
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Suzi Eszterhas / Sumatran Orangutan (Pongo abelii) two and a half year old baby calling, Gunung Leuser National Park, north Sumatra, Indonesia
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Suzi Eszterhas / Sumatran Orangutan (Pongo abelii) mother and playful one and a half year old baby, Gunung Leuser National Park, north Sumatra, Indonesia
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Suzi Eszterhas / Sumatran Orangutan (Pongo abelii) nine month old baby playing in tree, Gunung Leuser National Park, north Sumatra, Indonesia
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Anup Shah / Juvenile orang utan {Pongo abelii} Gunung Leuser NP Sumatra Indonesia
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Anup Shah / Orang utan (Pongo abelii) mother with baby, Gunung Leuser NP, Indonesia.
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Anup Shah / Sumatran Orang utan 'kissing' young {Pongo pygmaeus abelii} Gunung Leuser NP, Sumatra, Indonesia
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Anup Shah / Sumatran Orang utan baby hanging upsidedown in tree {Pongo pygmaeus abelii} Gunung Leuser NP, Sumatra, Indonesia
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Anup Shah / Sumatran Orang utan baby swinging in tree {Pongo pygmaeus abelii} Gunung Leuser NP, Sumatra, Indonesia
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Anup Shah / Orang utan high in tree of rainforest canopy, (Pongo abelii) Leuser NP, Indonesia
