Off the coast of Colombia, as many as 2,000 sharks in a wildlife sanctuary have been massacred, says the Colombian government. A team of divers first alerted the government to the killings, according to the Guardian:

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[The divers] saw a large number of fishing trawlers entering the zone illegally," [environmental minister Sandra] Bessudo said. The divers counted a total of 10 fishing boats, which all were flying the Costa Rican flag.

"When the divers dove, they started finding a large number of animals without their fins. They didn't see any alive," she said. One of the divers provided a video that shows the finless bodies of dead sharks on the ocean floor.

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The obvious explanation is that the sharks were killed for their fins, which are often used to make shark-fin soup, a delicacy in East Asia.