Adders include the only venomous snakes present in Britain, but they are absent from Ireland. They'll use their venom to immobilize prey such as lizards, amphibians, nestlings and small mammals. After striking their prey, they leave the venom for taking effect before following a victim’s scent to find the body. Although an adder’s venom poses little danger to some healthy adult human, the bite is quite painful and urgent medical attention. Adders will be the most northerly distributed snake and the only species found from the Arctic circle.
Adder
Death adder: five bites and pulling through
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Adder is Any of several groups of venomous snakes of the Viperidae family including Vipera berus tha they are the common European adder they found in Europe and northern Asia.
There are other snakes that include Adder:
Acanthophis sp., death adders, a genus of elapid snakes that was found in South East Asia and Australia
Heterodon sp., hog-nosed snakes, a genus of harmless colubrid snakes that was found in the North America
Agkistrodon contortrix mokasen, the northern copperhead, a venomous viper that was found in the eastern United States.