humpback whale,Twain! 2024.1.11.

I read the article and wondered if it was a pre-trained humpback whale, but I couldn't see it anywhere.
In conclusion, researchers did not train themselves, but sent whale language to a large number of unspecified whales, and I think one of them understood and came to visit.
She was called Twain.
I guess it was probably the first discoverer's name.
But Twain must have been disappointed!
She came there because I thought her friends were calling her, but they were people on the boat..