Claudio Contreras / Yucatan black howler monkey (Alouatta pigra) orphan in process of reintroduction to the wild, Yucatan Black Howler Monkey conservation program, Los Aluxes Ecopark, Palenque, Chiapas, southern Mexico....
Kevin Schafer / Guatemalan Black Howler Monkey (Alouatta pigra) male. Community Baboon Sanctuary, Belize, Central America. Endangered species.
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Kevin Schafer / Guatemalan Black Howler Monkey (Alouatta pigra) Community Baboon Sanctuary, Belize, Central America. Endangered species.
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Kevin Schafer / Guatemalan Black Howler Monkey (Alouatta pigra) Community Baboon Sanctuary, Belize, Central America. Endangered species.
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Kevin Schafer / Guatemalan Black Howler Monkey (Alouatta pigra) Community Baboon Sanctuary, Belize, Central America. Endangered species.
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Kevin Schafer / Guatemalan Black Howler Monkey (Alouatta pigra) calling, Wild, Community Baboon Sanctuary, Belize, Central America, Endangered species.
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Kevin Schafer / Guatemalan Black Howler Monkey (Alouatta pigra) peering from behind vegetation, Community Baboon Sanctuary, Belize, Central America. Endangered species.
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Kevin Schafer / Guatemalan Black Howler Monkey (Alouatta pigra) Community Baboon Sanctuary, Belize, Central America. Endangered species.
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Kevin Schafer / Guatemalan Black Howler Monkey (Alouatta pigra) Community Baboon Sanctuary, Belize, Central America. Endangered species.
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Kevin Schafer / Guatemalan Black Howler Monkey (Alouatta pigra) Community Baboon Sanctuary, Belize, Central America. Endangered species.
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Kevin Schafer / Guatemalan Black Howler Monkey (Alouatta pigra) Community Baboon Sanctuary, Belize, Central America. Endangered species.
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Kevin Schafer / Guatemalan Black Howler Monkey (Alouatta pigra) silhouetted whilst climbing down branch, Community Baboon Sanctuary, Belize, Central America. Endangered species.
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Kevin Schafer / Mexican Black Howler Monkey (Alouatta pigra) in tree, Community Baboon Sanctuary, Belize
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Kevin Schafer / Mexican Black Howler Monkey (Alouatta pigra) in tree, Community Baboon Sanctuary, Belize
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Kevin Schafer / Mexican Black Howler Monkey (Alouatta pigra) in tree, Community Baboon Sanctuary, Belize
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Kevin Schafer / Mexican Black Howler Monkey (Alouatta pigra) sub-adult female feeding on leaves, Community Baboon Sanctuary, Belize
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Kevin Schafer / Mexican Black Howler Monkey (Alouatta pigra) in tree, Community Baboon Sanctuary, Belize
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Pete Oxford / Mexican Black Howler Monkey (Alouatta pigra) male calling, Belize
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Pete Oxford / Mexican Black Howler Monkey (Alouatta pigra) in tree showing prehensile tail, Belize
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Pete Oxford / Mexican Black Howler Monkey (Alouatta pigra) mother with baby is also carrying baby from second female, Belize
00452019
Pete Oxford / Mexican Black Howler Monkey (Alouatta pigra) mother with baby is also carrying baby from second female, Belize
00452018
Pete Oxford / Mexican Black Howler Monkey (Alouatta pigra), Belize
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Pete Oxford / Mexican Black Howler Monkey (Alouatta pigra) feeding on leaves while hanging from prehensile tail, Belize
00452015
Pete Oxford / Mexican Black Howler Monkey (Alouatta pigra), Belize
00452014
Pete Oxford / Mexican Black Howler Monkey (Alouatta pigra) feeding on leaves, Belize
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Thomas Marent / Mexican Black Howler Monkey (Alouatta pigra) male sitting in tree, Belize
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Thomas Marent / Mexican Black Howler Monkey (Alouatta pigra) male sitting in tree, Belize
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Kevin Schafer / Mexican Black Howler Monkey (Alouatta pigra) feeding on leaves, Community Baboon Sanctuary, Belize
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Grant Maslowski / Yucatan black howler monkey (Alouatta pigra) infant, peering from under branch, Yucatan Peninsula, Mexico. Endangered.
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Grant Maslowski / Two Yucatan black howler monkeys (Alouatta pigra) resting in tree, Yucatan Peninsula, Mexico. Endangered.
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Joel Sartore / Photo Ark / Guatemalan black howler monkey (Alouatta pigra) female, head portrait, Omaha's Henry Doorly Zoo and Aquarium. Captive, occurs in Central America. Endangered.