Ключевые слова: adder, animal, bite, brown, camouflage, common european adder, danger, deadly, european adder, hazardous, herpetology, hunter, macro, nature, outdoors, pattern, pit viper, poison, poisonous, predator, reptile, scales, snake, snake head, tasting, tongue, tongue flick, toxic, venom, venomous, vertebrate, viper, vipera berus, wild, wild animal, wildlife,