SCIENTISTS WORKING IN the dense jungles of Indonesia have “rediscovered” a large, grey monkey so rare it was believed by many to be extinct.They were all the more baffled to find the Miller’s Grizzled Langur — its black face framed by a fluffy, Dracula-esque white collar — in an area well outside its previously recorded home range.The team set up camera traps in the Wehea Forest on the eastern tip of Borneo island in June, hoping to captures images of clouded leopards, orangutans and other wildlife known to congregate at several mineral salt licks.The pictures that came back caught them all by surprise: groups of monkeys none had ever seen.With virtually no photographs of the grizzled langurs in existence, it at first was a challenge to confirm their suspicions, said Brent Loken, a PhD student at Simon Fraser University in Canada, and one of the lead researchers.