Vietnam's 'White-Pants Monkey' Climbs Back from 234 Left

The Delacour's langur, one of the world's most endangered primates, is finally getting the protection it needs after teetering on the edge of extinction.

With just 234 to 275 individuals remaining in Vietnam's limestone cliffs, conservationists are now studying and safeguarding these striking black-and-white monkeys before it's too late.