As others have told you, that's not quite accurate. For example, one way we identified different whale groups was from their songs. Bird songs vary greatly from area to area.
Communications is important. Language is complex. It is a learned action.
It's very likely that language as opposed to sounding is one of those things which was invented time after time, in group after group, place after place. In the americas there appear to be at least five different root languages. It's one of the key things that have been used to build a picture of the arrival of different groups to the continents.
Aslan is not a Tame Lion