Gray whales have been mysteriously washing up dead on the Pacific coast. Now scientists think they might have the answer.

Tech Insider
A dead juvenile Gray Whale sits in the sand on Limantour Beach at Point Reyes National Seashore on May 25, 2019 in Point Reyes Station, California.
A dead juvenile Gray Whale sits in the sand on Limantour Beach at Point Reyes National Seashore on May 25, 2019 in Point Reyes Station, California.

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