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Park Service unravels mysterious jellyfish invasion

kgo
By ABC7
Wednesday, November 17, 2010
SAN FRANCISCO

More than 10,000 moon jellies came ashore Saturday morning. Marine biologists with the park service say it likely happened because of a large ocean swell, combined with a surge in the jellyfish population.

Most of the creatures washed back out to sea by a high tide on Sunday, but a few hundred remain on the beach.

Niologists say the jellyfish posed no danger.

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