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[Magpie]

Personally I don't believe the serpent from the garden of eden has anything to do with attitudes to snakes. Most tribal people, never exposed to christianity, traditionally fear snakes.
It has to do with their ability to kill you.
Snakes are used as a symbol for medicine, I'm not sure of the name of the symbol, but two snakes twined around a staff.
Obviously the Australian Aborigines believe that snakes had a lot to do with the creation of the world during the dream time.
Venemous snakes have been used as a method of assasination.
Cleopatra was killed by an asp.
The Irish credit St Patrick with removing snakes from Ireland.