> If you truly want to claim an animal possesses something similar to human language, you need to study the way it creates phrases, and the way it can compose simple phrases into complex phrases - that is where the key power of human language lies.
You make very interesting points. Where does this leave animals that are able to vocalize human language like parrots that talk?
That is well known to not mean almost anything. It is just a spectacular feat of mimicry, similar to birds that imitate chainsaw sounds or camera sounds. It is also similar to the ability we have to learn a song in a language we don't understand in any way - it's just a faithful imitation of sounds you hear, perhaps with slight context.
You make very interesting points. Where does this leave animals that are able to vocalize human language like parrots that talk?