Ключевые слова: adder, animal, beautiful, brown, camouflage, closeup, coldblooded, colorful, danger, dangerous, deadly, endangered, endemic, european, fauna, fearsome, ground, head, herpetology, hungarian, lethal, meadow, nature, poison, poisonous, predator, protected, rakosiensis, rare, reptile, reptilian, romania, scales, scarce, scary, snake, species, toxic, transylvania, ursinii, venom, venomous, viper, vipera, viperinae, wild, wildlife, zoology,