Ключевые слова: actinopterygii, animal, biology, bottom, deep, deepness, depth, diodontidae, exotic, fauna, fins, fish, fishhedgehog, fishurchin, flipper, hedgehog, marine, nature, porcupinefish, seahedgehog, seaurchin, spikes, tetraodontiformes, thorns, toxic, tropical, underwater, urchin, waterfowl, wildlife, zoology,