Board Thread:Warhammer 40k General Discussion/@comment-25618639-20150406151006/@comment-8881468-20150422223858

If it was a ship it owuld need biomass and size to actually get somewhere, genestealers operate by hibernating in hulks and then drawing the hive fleets to the planet they operate on.

any other hive bioform that is spaceborn, is quite large/does not operate out of range from hive fleets.

little tip: if spore bioforms come to a planet, what5 need would the hive fleet have to come ^^.. the genestealers operate by minimizing tyranid losses, any spore bioform you think of will not do that.

or orkoid dna simply offers 0 that the tyradnids want/deem as superior ;)