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The Invaders: Pigzilla

Prof. Anders Runesson with host David Berman, touring the Gamla Synogogue, one of the oldest in the world.
As many as 23 million feral pigs have taken over Australia, causing an untold amount of damage. These highly intelligent invaders are endangering native species, spreading disease, destroying farmland and even attacking people. They were deliberately introduced by people centuries ago; now it's up to locals to keep their populations in check. Scientists and citizens are resorting to a range of methods to defend their country against these "pigzillas."