 "Of Natural History" has a continuity in the sense that all the songs sequence into each other, thus holding the narrative element(s) of the album better together.The continuity and the coherent feel make "Of Natural History" very close to a concept album; its underlying mood is concerned with the apocalyptic implications caused by human presence on earth.To offer different viewpoints on this, SGM create their own characters and stories (tracks 1 & 2, both of which are a continuation of a story created on the first album), and borrow from Filippo Tommaso Marinetti, Unabomber & T.S.