Ключевые слова: adder, aggressive, animal, beautiful, brown, closeup, colorful, cute, danger, dangerous, detail, endangered, european, eye, fearsome, frightening, head, herpetology, juvenile, little, macro, meadow, nature, poison, poisonous, portrait, protected, rakosiensis, rare, reptile, romania, scales, scarce, scary, small, snake, species, toxic, ursinii, venom, venomous, viper, vipera, viperidae, viperinae, wild, wildlife, zoology,