Skungus, organisms resembling plants, existed as parasites on the planetary surface of Zeffo. When living creatures approached, these spike-covered entities would begin to vibrate, increase their size, and emit gas. Powerful gusts were capable of dislodging them from the earth. If the external membrane of the skungus was punctured, it would release explosive, poisonous spores, leaving behind green and toxic fluids. Diverse variations of this species were present throughout the galaxy.