User blog comment:Supahbadmarine/Clash of the Titans/@comment-9734625-20110428181815/@comment-10514705-20110429221527

Actually, the Tyranids were one of the original Rogue Trader species. They have been around since 1987 wheras Starcraft was only released in 1999. The Tau and the Necrons were 'recently' added species, only appearing just before 3rd Edition of the WH40k Rulebook came out.