From Creatures Wikia
The Zabriskie Norns are a variation of the Beowulf Norns made by Arcwelder. They are robust and tough, resistant to damage and toxins, often angry, and tend to hit back if a Creature slaps them. They have proven to be efficient grendel killers. Also, they are known to follow the Hand from place to place, and the Hand is the only thing that can injure them badly. However, they breed well and are quite obedient and helpful.
Colour mutations are usual, especially amongst males. Sprites needed: Butterfly (tail), Beowulf (the rest). They can be downloaded from Gameware Forums and used freely.