First your post presumes most animals can talk in a sophisticated way instead of some primitive signals. Then it presumes scientists aren’t working on understanding animal communication.

Scientists did this with whales and the story broke. The reality of that story was that it was like some musicians splicing some bird songs together and a bird came to listen for a little and leaving. It got blown up by excited people who wanted to believe we were talking to animals.

Did you even bother to open up google scholar and do a half assed search before posting that and then adding it here?