Natural habitat of a bored arboreal Northern Pig-tailed Macaque, Macaca leonina, amused in grooming itself with its fingers alone on a tropical tree branch in Khao Yai National Park in Thailand

pig tailed macaque primate macaca macaque monkey wildlife branch khao yai ape climber mammal conservation simiiformes national geographic tree climb preen cercopithecidae thailand deciduous animalia mammalia animal wild habitat haplorhini national park species asia leonina wilderness nature chordata vulnerable evergreen forest northern distance natural site sky southeast outdoor green groom tropical fur close up macro