The dusky leaf monkey (Trachypithecus obscurus) is a langur distributed around the Malay Peninsula and in Myanmar and Thailand. It is characterized by a black face with white markings around the eyes and nose; infants are born with bright orange fur and acquire the adult coloration as they mature. It is diurnal and inhabits lowland shrub forests, feeding on leaves, fruits, seeds, and insects. Groups range from a few individuals to around twenty and may exhibit single-male/multi-female or multi-male/multi-female social structures; social grooming and vocal communication are prominent. It is assessed as Near Threatened due to hunting and habitat destruction.