Ключевые слова: alone, animal, ape, bar, bars, behind, cage, caged, captivity, captured, cell, child, chimpanzee, closeup, concept, creature, depression, disaster, environment, environmental, exhibit, face, fence, gorilla, hold, idea, iron, jail, laboratory, locked, lonely, mammal, metal, monkey, natural, nature, portrait, primate, prison, sad, sentence, small, species, stress, suffer, tame, urban, wild, wildlife, zoo,