Fenris Brood

The Fenris Brood's role is to systematically hunt down and eliminate opponents of the Zerg Swarm. The creatures of this brood are known for their formidable tracking skills and their deadly efficiency. One of the brood's main tasks is to find new races suitable for assimilation into the Zerg Swarm; once such a species has been identified by the Fenris Brood, the Grendel Brood (a brood only briefly mentioned in the original StarCraft instruction booklet, named after the monster Grendel) carries out the absorption.  Fenris Brood