Thomas Marent / Sykes Monkey (Cercopithecus albogularis) and Red-tail Monkey (Cercopithecus ascanius) hybrid, Mount Kenya Wildlife Conservancy, Kenya
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Thomas Marent / Sykes Monkey (Cercopithecus albogularis), Mount Kenya National Park, Kenya
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Thomas Marent / Sykes Monkey (Cercopithecus albogularis) pair, Mount Kenya National Park, Kenya
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Anup Shah / Sykes monkey {Cercopithecus albogularis} portrait, Mt Kenya, Kenya, East Africa
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Anup Shah / Zanzibar sykes monkey (Cercopithecus mitis albogularis) using an electricity wire to cross a road . Jozani-Chwaka Bay National Park, Zanzibar, Tanzania. May.
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Fiona Rogers / Zanzibar sykes monkey (Cercopithecus mitis albogularis) portrait . Jozani-Chwaka Bay National Park, Zanzibar, Tanzania. May.
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Anup Shah / Zanzibar red colobus (Procolobus kirkii) and Zanzibar sykes monkey (Cercopithecus mitis albogularis) sitting together on a palm tree. Jozani-Chwaka Bay National Park, Zanzibar, Tanzania. May.
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Anup Shah / Zanzibar sykes monkeys (Cercopithecus mitis albogularis) on a palm tree . Jozani-Chwaka Bay National Park, Zanzibar, Tanzania. May.
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Thomas Marent / Sykes Monkey (Cercopithecus albogularis), Mount Kenya National Park, Kenya
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Thomas Marent / Sykes Monkey (Cercopithecus albogularis), Mount Kenya National Park, Kenya
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Thomas Marent / Sykes Monkey (Cercopithecus albogularis), Mount Kenya National Park, Kenya
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Thomas Marent / Sykes Monkey (Cercopithecus albogularis) in tree, Arusha National Park, Tanzania
