Wild Japanese macaque eating nuts on the ground while gazing into distance on a sunny day

snow monkey animal chewing eating nuts cracking open looking around japan japanese macaque macaca fuscata omnivorous native terrestrial old world species intelligent behavior behaviour park kyoto attraction tree branch wild brown fur pinkishred face sexual dimorphic semiterrestrial habitat matrilineal social structures hierarchy research neuroscience distribution nonhuman primate protection sanctuary outdoor nature no people wildlife daytime shell sunny