Two individuals resting on the branch as seen from their backs and then they turned to face back and one scratched its limbs, Dusky Leaf Monkey Trachypithecus obscurus, Thailand

trachypithecus obscurus spectacled leaf monkey dusky leaf monkey langur lutung spectacled langur simiiformes primates trachypithecus wildlife sanctuary malaysia long tail monkeys fruiting tree cercopithecidae foraging habitat mammals wildlife arboreal branches thailand primate kaeng krachan canopy mammalia myanmar apes animals trees jungle mongkeys habitat loss climbing rainforest endangered nature haplorhini endangered species forest leaves folivorous national parks natural morning green howling