Our consciousness developed as our brains did. Of course, some people's consciousness never fully evolved, which is why we still have liberals. (Who should be proof enough that evolution exists in both directions.)
BTW, I believe that God created the Universe and that evolution is part of His plan. Somebody's gotta be at the top of the food chain...
That old guy Moses figures in the picture somewhere, I'm pretty sure.
God intervenes via certain gifted/cursed individuals throughout history.