Ключевые слова: adder, animal, beautiful, berus, brown, closeup, cold, common, creature, creeping, crossed, danger, dangerous, detail, endangered, european, fauna, fear, fearsome, female, frightening, gray, herpetology, macro, natural, nature, poikilothermic, poison, poisonous, portrait, reptile, reptilian, scales, scary, serpent, snake, species, toxic, venom, venomous, viper, vipera, viperidae, viperinae, wild, wildanimal, wildlife, zoology,