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Fisherman Angel Fernandez throws a net to capture lampreys in a fishing trap on the river Mino in Arbo, northwestern Spain, on March 12, 2015. Its black and elongated body repels but lamprey hides a tasty meat that attracts people who travel hundreds of kilometers to Galicia, in northwestern Spain, to presence the ritual of its artisanal fishing in the Minho River. AFP PHOTO / MIGUEL RIOPA TO GO WITH AFP STORY BY GABRIEL RUBIO (Photo credit should read MIGUEL RIOPA/AFP via Getty Images)

Fisherman Angel Fernandez throws a net to capture lampreys in a fishing trap on the river Mino in Arbo, northwestern Spain, on March 12, 2015. Its black and elongated body repels but lamprey hides a tasty meat that attracts people who travel hundreds of kilometers to Galicia, in northwestern Spain, to presence the ritual of its artisanal fishing in the Minho River.   AFP PHOTO / MIGUEL RIOPA

TO GO WITH AFP STORY BY GABRIEL RUBIO        (Photo credit should read MIGUEL RIOPA/AFP via Getty Images)