Gray whale numbers along North America’s west coast down nearly 40 percent since 2016
The steep population decline echoes earlier fluctuations but still requires further attention, NOAA said.

LOS ANGELES — The number of gray whales migrating along the Pacific Coast of North America has steadily declined by nearly 40 percent from a 2016 peak, and the population produced its fewest calves on record this year, according to U.S. research released on Friday.
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