The yellow-cheeked crested gibbon is one of 6 species of crested gibbons, all of which have suffered from accelerating declines throughout their range, mostly due to perceived increases in the level of exploitation.
© Sak Ousaphea
Female Yellow-cheeked Gibbon at Cambodia's Phnom Tamao zoo
Yellow-cheeked crested gibbons occur in northeastern Cambodia, southern Vietnam, and southern Lao, with Cambodia probably containing the majority of the population. In the Eastern Plains Landscape of Mondulkiri (Cambodia), a recent survey found Phnom Prich Wildlife Sanctuary to hold the second largest number of these gibbons in Cambodia after Seima Biodiversity Conservation Area.