A species of sand-creatures lived in a part of the Skaro desert.
The sand-creatures are exterminated by the Daleks. (COMIC: Legacy of Yesteryear [+]Loading...["Legacy of Yesteryear (comic story)"])
For much of early Dalek history, these creatures were a secret to the Daleks. Following the temporary evacuation of the Dalek City, the Daleks scoured Skaro in order to strengthen their defenses. The sand-creatures were among the discoveries made at this time, with the Daleks deciding to exterminate them all. (COMIC: Legacy of Yesteryear [+]Loading...["Legacy of Yesteryear (comic story)"])