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Swarm of giant jellyfish invades Sea of Japan

December 2, 2009 12:00:00 AM PST
A swarm of giant jellyfish has invaded the Sea of Japan, threatening that area's fishing business.These jellyfish are like the sumo of the seas. They can measure up to seven feet across and weigh more than 600 pounds.

The jellies have swarmed the Sea of Japan for years, but this year there are more than ever before.

Experts say warmer water means more jellyfish.

Fishermen estimate they've lost $110 million so far. The jellyfish clog nets, and poison and crush the catch.


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