Can, but hasn't. If one wanted to create that, one doesn't go around in that form. Until you became animalized, you would have a form that could vary in various ways. Yes, there's animal spirit.
Animal spirit has many different aspects.
The animal firmament is the part that you see, touch and feel. Most commonly called the body. There are other layers of animal matter and vibrations out from the body as well as the spiritual aspects of that physical being. It leaves the body. It can stay in this level of your human forms, the level here on the earth plane.