Board Thread:Warhammer 40k General Discussion/@comment-95.148.187.34-20130120214333/@comment-6078851-20130315155808

chances are that in the 40k universe most galaxies will be teeming with life, and undoubtedly a lot of that life will be hostile with the occasional super hostile life thrown in to spice things up :)

but a lot of these hostile and super hostile extra-galaxtic species are now just a part of the tyranids' genetic databases :)

but, the known universe isn't that expansive. tyranids have devoured over a dozen galaxies, as far as we know. in the unknown universe they may have devoured every other life bearing galaxy and this is the last, or they could even be on the run from something unimaginably more powerful and dangerous.