Feds to investigate spike in gray whale deaths on West Coast

  SEATTLE --- U.S. scientists said Friday they will investigate why an unusual number of gray whales are washing up dead on West Coast beaches.   About 70 whales have been found dead so far this year on the coasts of California, Oregon, Washington and Alaska, the most since 2000. About five more have been discovered on British Columbia beaches. That's a very small fraction of the total number of whales believed to have died, because most simply sink and others wash up in such remote areas they're not recorded.   NOAA Fisheries on Friday declared the die-off an "unusual mortality event," providing additional resources to respond to the deaths and triggeri...

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