Although I do not believe in all science, personally, I would be very interested in hearing what you have to tell us on this, from a scientific point of view. Myself, I like to believe things are how they are, because it is how they be. I do believe in shape-shifting, in various forms, though I personally like to believe it from a magic and nature point of view.
As for WS's story, I have heard similar accounts before. The world we live in is full of mysteries, and that is something I like. Man's love of science tries to break these mysteries, and/or disprove them with his science. Fortunatly, I feel that magic and nature are too strong in some things to allow science to break through. I think this is currently how shape-shifting is, and how I would like it to stay. Though I am still interested in hearing from the scientific view on this matter.