Both hands securing its balance, tail down, wind blowing, a leaf falls

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