Sean Crane / Panamanian Night Monkey (Aotus zonalis) in tree cavity, Soberania National Park, Panama
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Joel Sartore / Photo Ark / Panamanian night monkey (Aotus zonalis) head portrait, Nispero Zoo, Panama. Captive.
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Christian Ziegler / Panamanian Night Monkey (Aotus zonalis) feeding on Balsa Tree (Ochroma lagopus) flower nectar at night, Barro Colorado Island, Panama
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Christian Ziegler / Panamanian Night Monkey (Aotus zonalis) feeding on Balsa Tree (Ochroma lagopus) flower nectar at night, Barro Colorado Island, Panama
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Joel Sartore / Photo Ark / Panamanian night monkey (Aotus zonalis) looking at camera, El Nispero Zoo, Panama. Captive.
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Joel Sartore / Photo Ark / Panamanian night monkey (Aotus zonalis) turning to look at camera, El Nispero Zoo, Panama. Captive.
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Marie Read / Panamanian night monkeys (Aotus zonalis) family in their daytime roost in a hollow tree, Soberania National Park, Panama.
