Ключевые слова: adder, animal, attack, beautiful, biology, brown, coldblooded, colorful, danger, dangerous, deadly, endangered, environment, europe, european, fauna, ground, head, herpetology, hungarian, lethal, meadow, nature, poison, poisonous, predator, protected, rakosiensis, rare, reptile, reptilian, romania, scales, scarce, scary, snake, species, threatened, tongue, toxic, transylvania, unique, ursinii, venom, venomous, viper, vipera, wild, wildlife, zoology,