Ключевые слова: america, animal, biology, brazil, brazilian, callithrix, callithrix geoffroyi, ear, endemic, fauna, fur, geoffrey, geoffreys marmoset, geoffroy, geoffroy marmoset, geoffroyi, geoffroys marmoset, headed, mammal, marmoset, monkey, natural, nature, new world, new world monkey, on foot, portrait, primate, primates, primatology, south america, south american, species, tufted, tuftedear, tuftedear marmoset, white, white headed, white headed marmoset, whiteheaded, whiteheaded marmoset, wild, wildlife, zoo, zoology,