Zilla (ジラ, Jira) is a nickname for the titular creature of the 1998 American film. Zilla is a giant mutated iguana originating from a nuclear test in French Polynesia. As the test was done in 1968, the creature (or perhaps species) grew over a period of approximately thirty years. His irradiated genes caused him to achieve a height of over sixty meters (about two-hundred feet). Physically, he resembles a giant-sized, Raptor like, flesh-eating dinosaur of some sort. He has rough, square-shaped (from side view) jaws, a long neck, large, fin-shaped dorsal spines (which differ greatly from the maple leaf-shaped spines of Godzilla, and long, powerful legs and arms. He also possesses a seemingly vestigial toe, on the back of, and three dinosaur-like toes on the front of each foot, and (oddly enough) a huge chin.