Shellfish cover the beach in Cucao, on Chiloe Island, Chile, 9th May 2016.
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Chile's biggest ever 'red tide' threatens sea life

Chile's southern coast has been hit by the biggest ever "red tide" in history.

The phenomenon is caused by algae which kills sea life with a toxin that paralyzes the central nervous system.

The local fishing economy is struggling to cope, as Laura Westbrook explains.

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