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AUSTRALIA HAS A PARASITE believed to be the largest in the world, a tree whose greedy roots stab victims up to 110m away. The Christmas tree (Nuytsia floribunda) has blades for slicing into the roots of plants to steal their sap. The blades are sharp enough to draw blood on human lips. They cause power failures when the tree attacks buried cables by mistake. Telephone lines get cut as well.
Forget the spiders and snakes and drop bears. It's the trees that'll get you.