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Bristol Zoo: Black Howler Monkey
Did you know that the black howler monkey is possibly the laziest monkey in the world? This informative site provides a number of interesting facts related to distribution, diet habitat, conservation status and more.
Smithsonian Institution
Smithsonian National Zoo: Black Howler Monkey
There are many interesting facts about the loudest animal in the New World, the black howler monkey, on this informative site.