Ключевые слова: animal, aquarium, aquatic, aquatic invertebrate, beautiful, biodiversity, biology, chamber, chambered, chambered nautilus, cute, ecological, ecology, emperor, emperor nautilus, environment, exoskeleton, fauna, gastropod, invertebrate, life, lovely, mollusc, mollusk, natural, nature, nautilidae, nautilus, nautilus pompilius, pearly, pearly nautilus, pompilius, portrait, sea, sea snail, seashell, shell, snail, species, spiral, underwater, water, wild, wildlife, zoo, zoology,