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10 animals found in the rainforest

By: Bryan Nelson on April 7, 2014, 10:40 a.m.
Siamang, Symphalangus syndactylus

Photo: Suneko [CC BY-SA 2.0]/Flickr

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Siamangs are black-furred apes native to the forests of Southeast Asia; they are the largest species of gibbon in the world. They are particularly distinctive for their balloon-like throat pouch, which they use for making loud, whooping calls. Their calls are unmistakable in the dense jungle, and are meant to establish territorial boundaries between rival groups.