Board Thread:Warhammer 40k General Discussion/@comment-86.7.138.66-20130615215334/@comment-21719124-20130926132630

I think it might have actually been several thousand years before the age of man. There was a sort of animal that Imperial savants stumbled across that, for all intents and purposes, appeared to have been no less then a degenerate strain of Tyranid. Whether or not its true is anyones guess. As for the Tyranids being a Slannic purge button? Meh, I'd probably chock that one up to the Rak-gol myself. Those suckers are practically anathema to life itself and don't really have any reason to atomize world after world.