Ключевые слова: adder, angis, animalia, basking, berus, chordata, coldadapted, common adder, common european adder, common european viper, common viper, cross adder, devil, european adder, european common viper, european viper, folklore not dangerous, foraging, hibernates, hibernation, in middle english, lizards, mainly diurnal, meaning, melanistic, mild toxicity, mild venom, nominate subspecies, northern viper, not very dangerous, ovoviviparous, serpent, snake, strike, terrestrial, thickbodied, v berus, venomous viper species, vertebrata, vipera, vipera berus, viperidae, viperinae, widespread, zigzag, zigzag pattern,