re: #62 Decatur Deb

“…her initial data, which has yet to be published, shows one key change: the humpbacks made a certain kind of call, which she calls a whup, much less often.

In the summer of 2019, about 66 percent of humpback whale calls were whups. In 2020, when median noise levels were three times lower, the frequency of the whales’ whups fell to less than 50 percent.”

They’re shifted to “welps.”