Researchers have confirmed a previously unknown tree-dweller living in the forests of central Myanmar.
With a face framed by unruly gray hair, the Popa langur - named for an extinct volcano that's home to its largest population, some 100 individuals - has been around for at least a million years.
But with no more than 250 left, the leaf-eating species is critically endangered, threatened by hunting and habitat loss.
Evidence of the langur was found not in the wild but the London Natural History Museum, where analysis revealed specimens gathered more than a century ago when Burma was a British colony were something new.
Popa poop collected by Frank Momberg and colleagues at Flora & Fauna International then matched museum samples.
Trachypithecus popa's tail - nearly a meter - is longer than its body, with the langur weighing about eight kilograms.
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