Joystiq writes "Yesterday morning we had the chance to listen to Ken Levine speak on the storytelling process behind his hit title, BioShock. The quick Zero Punctuation video got big laughs, but there was another video during the presentation that more accurately represented what Ken was talking about. Above is a picture of a stage in the development of the Little Sisters, a hint at other (stranger?) versions of Rapture and its denizens. You can catch other stages in the Sisters development in our gallery of photos from the talk."