A Norn-Queen (also sometimes referred to as a Splicer-Beast) is the highly intelligent Tyranid bio-form that leads the great Tyranid swarms and directs the evolutionary paths they take as they adapt to each new environment or tactical need. They live upon massive Hive Ships in huge chambers at the centre of the Hive Fleet and ingest genetic materials. They then churn out through asexual reproduction all the countless types of bio-forms that make up the Tyranid Hive Fleet. All Tyranids have links back to a Norn-Queen, as the only way for Tyranids to reproduce is through this cloning technique. Although they are sentient beings unlike so many of the other Tyranid bio-forms, they spend their entire lives psychically arguing through the Hive Mind with their "sisters" about how the next swarm o