In this May 9, 2016 photo, shellfish washed ashore blanket the shore in Cucao, on Chiloe Island, Chile. The government has declared an emergency zone along Chile’s south and in Chiloe as it deals with the country’s worst ever “red tide,” which can be lethal to fish and other marine forms with a toxin that paralyzes the central nervous system. Consumption of shellfish from red tide areas can poison humans as well. (AP Photo/Esteban Felix)

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