Ключевые слова: alone, animal, animal cage, ape, background, bars, black, borneo, brown, cage, captivity, catch, clamber, climb, close, closeup, concept, face, fence, finger, fingers, free, freedom, hair, hand, hominidae, iron, jail, jungle, keep, mammal, metal, monkey, natural, nature, orangutan, paw, ponginae, pongo, portrait, primate, primates, prison, sad, tropical, white, wild, wildlife, zoo,