Sometimes the water in Puget Sound glows. Why does it do that?

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by Jeff Renner

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KING5.com

Posted on April 10, 2013 at 6:04 PM

Sometimes the water in Puget Sound glows. Why does it do that?

The glow is caused by a type of plankton and certain jellyfish. The scientific term is 'bio-luminescence'. They glow when disturbed. Scientists believe that is both an alarm to other plankton (or jellyfish) and also as a warning, since the 'glow' makes it easy for even bigger predators to spot (and eat) the predator that's eating the plankton.

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