Some of you out there have the wrong idea about what a shape-shifter is. They do not physically change shapes like in Star Trek: Deep Space Nine. Those kind of creatures do not exist in the 3D realms. They do this by two methods, depending on the kind of reptilian: hologram tech to make you see them as whoever or whatever they want; or psychic control of your mind to suggest to your subconscious that you are seeing a human being and not an ET. (For politicians and those before public cameras, it is always hologram tech.)
posted by A.M.