Board Thread:Warhammer 40k General Discussion/@comment-6589306-20130228113457/@comment-6078851-20140831141301

xeno's originated in this galaxy and tyranids originated in another galaxy, and 'nids have consumed all the organic matter in, at the very least, 1 whole galaxy. to do that would require way waaay more than 40,000 years :P

i have an earlier post in which i try to shoehorn xeno's and 'nids into the same species, and i think it holds up quite well :)