Japanese macaque grooming another one

snow monkey macaque pinkish face macaca fuscata primate monkey grooming grooming techniques zoo fauna mammal fur animal captive face hygiene saru close up cute nihonzaru groom behavior eyes ecology shallow focus hygienic environment japanese adorable biology greyish hair blurry background social relationship cleanse another one nature habit handheld confined nobody life copy space exterior clean copyspace clear up sunlight outdoors daylight