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Dolphins slaughter off Peru's coast revealed

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For years conservationists and environmentalists have warned of a slaughter of dolphins around Peru.  Footage has been obtained that shows fishermen harpooning dolphins for bait to use in the lucrative shark fishing business.  It has long been suspected that this illegal practice goes on but this is the first time the secret hunting has been filmed. This  contains images some viewers may find disturbing. ITV’S Lawrence McGinty reports.