It is speculated their Hive Mind was drawn by the Astronomican's psychic beacon.įirst contact with the Tyranids for the Imperium of Man was an attack on a moon called Tyran, which gave the species its Imperial name.
They first appeared in the eastern fringes of the galaxy in late M41, emerging from the intergalactic space of the Local Group and heading toward the center of the galaxy. The origin of the Tyranids is utterly unknown.
