Discover the captivating world of the Hatinh Langur (Trachypithecus hatinhensis), a striking primate native to Vietnam and Laos, known for its unique black and white facial markings and agile arboreal lifestyle. As an endangered species, these leaf-eating monkeys play a crucial role in their ecosystem while facing significant conservation challenges due to habitat loss and illegal trade. Join us as we explore their fascinating behaviors, intricate social structures, and the urgent efforts needed to protect this elusive and vital species.