Sorry, but loss of structures in evolution (which you first attempt to deny was evolution because it wasn't advancement) is just one type of evolution.
At one time there were no mammals with hooves or wings. Where do you think they came from (or do you think they were there from the beginning?)?
At one time there was neither nylon to digest or a bacteria that could digest nylon. Where do you think nylon digesting bacteria came from?
At one time there were no placental mammals. Where did they come from and why are non-placental mammals limited to Australia and the opossum?