The Purple-faced langur, or purple-faced leaf monkey, is an arboreal Old World monkey endemic to Sri Lanka. This shy primate is distinguished by its dark, purplish-black face, prominent white sideburns, and a predominantly dark grayish-brown body. As a folivorous species, it spends much of its time in the forest canopy, with a specialized stomach adapted to digest complex carbohydrates found in leaves. Rapid urbanization and deforestation have severely impacted its habitat, leading to its classification as an endangered species.
