I don't know anything about animal (verbal) language. But I'm curious if there are any animals whose apparent language is advanced enough that zoologists may believe that the animals have a conceptual language similar to ours.

If so, I wonder if ML algorithms have ever been applied to decode the languages? I suppose collecting the data may be hard, but it feels like ML may better suited to predict/decode the language than qualitative observations by humans? e.g. what if communication happened more via power than frequency?