They are workin currently in translating the Dolphin lenguage ito english

https://www.smithsonianmag.com/innovation/checking-the-claim-device-translates-dolphin-sounds-into-english-180950472/

https://www.smry.ai/proxy?url=https%3A%2F%2Fdashmacintyre.medium.com%2Fbiologists-have-translated-the-dolphin-language-and-they-say-its-filled-with-slur-words-for-9eb3c4ddb6a4

https://newatlas.com/biology/build-ai-translator-dolphins-dolphingemma/

Also less serious:

https://anythingtranslate.com/translators/dolphins-translator/