Suddenly turns its head around while the other looks towards the forest, Dusky Leaf Monkey Trachypithecus obscurus, Thailand

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