According to NOAA, over 180 gray whales have washed up dead along the West Coast so far this year. But each new specimen adds a little more clarity for scientists.
The National Oceanic and Atmospheric Administration announced Friday that the 70 dead whales seen this year in the U.S. constitute “an unusual mortality event.”
Thirty large dead whales have been observed floating or washed ashore in coastal Alaska since May. That’s over three times the average for Alaska waters.