In "Jaws" and "Finding Nemo," the shark is the villain. As Maryanne Long of the Atlantic White Shark Conservancy explains during a presentation at Marblehead Charter School, not only are great white sharks and other sharks not the bad guys in real life, but they're also important for the health of our oceans.

<p>In "Jaws" and "Finding Nemo," the shark is the villain. As Maryanne Long of the Atlantic White Shark Conservancy explains during a presentation at Marblehead Charter School, not only are great white sharks and other sharks not the bad guys in real life, but they're also important for the health of our oceans.</p>

From the Newsroom: Wicked Local - News and Interviews from the hub towns of Eastern Mass

From the Newsroom: Wicked Local

Local News and Interviews from Wicked Local Massachusetts.

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