adaptable african baboon baboons bonding calluses canine-teeth crafty distinct distinctive dog-like-muzzles dogfaced fierce-fighters forage foragers foraging gestures grey-brown groom grooming ground-dwelling habitat-shrinkage hamadryas-baboons hierarchical-troops intelligent ischial-callosities large-canines mammal monkey old-world-monkeys omnivores omnivorous opportunistic papio papiocynocephalus-hamadryas play playing primates protruding-buttocks quadruped ruff sacred-baboon social socialize socializing terrestrial troop vocalizations wildlife