Mysterious disease wiping out sea stars

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Mysterious disease wiping out sea stars

by CBSTV Videos 1:57 mins

Mysterious disease wiping out sea stars

by CBSTV Videos 1:57 mins

Scientists are at a loss to explain what is killing sea stars along the West Coast. In some places, 95 percent of the population has died, and the ecosystem on the coast is changing as a result. Ben Tracy reports.

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