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