Ключевые слова: africa, animal, ape, behavior, bush, captive, captivity, chimpanzee, cognitive, ecology, emotions, expression, expressive, female, frustration, funny, funny animals, gorilla, hominid, humanoid, humorous, idea, illness, intellectual, intelligence, intelligent, meditate, meditating, meditation, mind, monkey, nature, orangutan, orangutang, pets, primate, primitive, prisoner, rain forest, rainforest, sad, safari animals, tired, wildlife, wildlife animals, worried, zoo, zoo animals,