This creature was originally scripted as an "alien horse",  but the final model was a modified version of the Drakoulias from Star Trek. "We gave it a shave and a spray tan," remembered Paul Kavanagh, "and we re-rigged it with some new techniques we've developed to handle quadropeds, which gave us better animation controls." (Cinefex, No. 134, p. 77) According to the website FXGuide, the filmmakers dubbed the Nibiran version of the animal "Niborilla".  However, according to Cinefex (No. 134, p. 77), this name is spelt "Nibirilla".