 Their planet of origin is unknown, but such is their relentless evil, legend holds that the Brood originated not through natural evolution, but in otherworldly sorcery.In this galaxy they found certain large space-dwelling creatures that they decided to use as living starships and began intergalactic conquest before infesting neighboring star systems and building a fearsome empire.These include the whale-like Acanti, and the shark-like Starsharks.