Dusky Leaf Monkey, Trachypithecus obscurus, sitting on the branch looking up to the vine that it is holding and looks down

trachypithecus obscurus spectacled langur trachypithecus dusky leaf monkey in asia langurs in asia near threatened primates spectacled leaf monkey dusky leaf monkey leaf monkeys in asia primates in asia leaf monkey langurs near threatened monkeys primate primates of thailand tree climbing animals primates monkeys in asia wildlife in asia kaeng krachan national park monkey animals of thailand mammals of thailand near threatened species wildlife in thailand monkeys in thailand wild animals in asia arboreal animals simiiformes near threatened mammals of asia cercopithecidae mammalia animals of asia conservation tree climbers haplorhini plant eating animals mammals arboreal jungles national parks in thailand animals wild animals kaeng krachan nature herbivorous herbivore forests