Images and concepts of the 'posthuman' go back at least as far as the famous 'madman parable' in F. Nietzsche's The Gay Science, and their 'roots' go back much further still. In turn, the image or theme of the posthuman has played an increasingly important role in recent literature, film, and television, where the notion of humanity as a 'larval being' (G. Deleuze) that transforms itself or is being transformed into something else, for better or worse,...