Seen behind the tree sitting on a branch looking up to the left then turns its head and body to hold the branch, moves its head to the right, 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