Dolphin moms use ‘baby talk’ with their calves, a first among non-human species
https://www.msn.com/en-us/news/world...49a82ff2&ei=18
What did the dolphins say in Hitchhiker's Guide to the galaxy?
The last ever dolphin message was misinterpreted as a surprisingly sophisticated attempt to do a double-backwards-somersault through a hoop whilst whistling the 'Star-Spangled Banner', but in fact the message was this: So Long, and thanks for all the fish.