Tyranids : Hive Guard

The Hive Guard are a strange Tyranid life form. They are usually not seen until the capillary towers and spore chimneys have formed on the surface of a world in the later stages of a Tyranid invasion.

Such structures are vital to the Tyranids’ attempt to consume a world, and the Hive Mind has created a specific beast for their protection — the Hive Guard.