U.S. researchers say the number of gray whales off western North America has continued to fall over the last two years, a decline that resembles previous population swings over the past several decades.
According to an assessment by the National Oceanic and Atmospheric Administration Fisheries released Friday, the most recent count put the population at 16,650 whales — down 38% from its peak in 2015-16. The whales also produced the fewest calves since scientists began counting the births in 1994.
