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Male Black Howler Monkey in a Tree
Photo: Male black howler monkey in a tree
WALLPAPER
The highly vocal howler monkey is the largest of the New World monkeys.
Photograph by Joel Sartore
Howler Monkey Profile Page

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Congo's Virunga National Park is home to some of the last remaining mountain gorillas on Earth. But war, poaching, and the charcoal trade is threatening their existence.

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