Both resting on branches then the one on the left moves to the top branch and the other looks down, Spectacled Leaf Monkey Trachypithecus obscurus, Thailand

animals monkey primate dusky leaf monkey spectacled langur spectacled leaf monkey langurs leaf monkey mammalia primates haplorhini simiiformes cercopithecidae trachypithecus obscurus trachypithecus conservation near threatened herbivore herbivorous kaeng krachan arboreal mammals mammals of thailand forests jungles nature climbers forest rainforest jungle tropical national park wildlife sanctuary