Anup Shah / Celebes / Black crested macaque (Macaca nigra) sub-adult male yawning, Tangkoko National Park, Sulawesi, Indonesia.
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Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) sub-adult male head portrait, Tangkoko National Park, Sulawesi, Indonesia.
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Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) mature male head and shoulders portrait, Tangkoko National Park, Sulawesi, Indonesia.
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Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) sub-adult male head portrait, Tangkoko National Park, Sulawesi, Indonesia.
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Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) baby less than 1 month old in mothers arms, Tangkoko National Park, Sulawesi, Indonesia.
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Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) female head and shoulders standing portrait, Tangkoko National Park, Sulawesi, Indonesia.
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Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) two individuals greeting, Tangkoko National Park, Sulawesi, Indonesia.
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Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) female with suckling infant aged 9-12 months, Tangkoko National Park, Sulawesi, Indonesia.
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Anup Shah / Celebes / Black crested macaque (Macaca nigra) juvenile sitting on a tree, wet from playing in the river, wide angle perspective, Tangkoko National Park, Sulawesi, Indonesia.
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Anup Shah / Celebes / Black crested macaque (Macaca nigra) 'Alpha' baby female aged about 1 month hanging upside down in a tree, Tangkoko National Park, Sulawesi, Indonesia.
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Anup Shah / Celebes / Black crested macaque (Macaca nigra) two juveniles approaching with curiosity, one grimacing Tangkoko National Park, Sulawesi, Indonesia.
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Anup Shah / Celebes / Black crested macaque (Macaca nigra) group up close, watching with curiosity, Tangkoko National Park, Sulawesi, Indonesia.
