Two individuals seen on the branch while one walks to the left and disappears, other stays looking at the camera, Dusky Leaf Monkey Trachypithecus obscurus, Thailand

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