Japanese macaque sitting on tree branch casually examining, cracking open a hard shell using its teeth and eating the nut inside

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 diurnal distribution nonhuman primate roaming protection sanctuary outdoor nature no people wildlife daytime