A silhouette of an adult jumping to another branch, Dusky Leaf Monkey Trachypithecus obscurus, Thailand

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