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Photo: Klaus Rudloff · CC BY-SA 4.0 (May be cropped or resized)
Hylobates agilis
Range
Sumatra, Malaysia and southern Thailand
The agile gibbon, also called the black-handed gibbon, is an Old World primate in the gibbon family. Its fur varies from black to red-brown and the brow is white. It is native to Sumatra and is also found in Malaysia and southern Thailand. Habitat destruction and the pet trade are the main threats (Wikipedia, general species account).