Dilophosaurus, the "Two Crested Lizard," is a dinosaur made famous by the movie Jurassic Park's fictitious size, frill, and venomous spit. The real Dilophosaurus was just as fascinating without the fabricated details and is just as beloved by dinosaur fans. With a maximum length of about six meters long and a height of almost two meters tall, the Dilophosaurus was about the same height as an adult human. It grew rapidly with age, and by the time it was an adult it could feed upon many small dinosaurs. Several Dilophosaurus fossils preserving deformities such as injuries and tumors have been found, giving us insight into the stressful environments and ailments that these creatures lived with. Roaming North America during the early Jurassic Period, Dilophosaurus enjoyed arid environments that few known creatures lived in. As one of the largest carnivores of the time, the Dilophosaurus asserted itself in the food chain. To satiate its appetite, the Dilophosaurus likely fed on small armored herbivores or heterodontosaurids. It may have also fed upon aquatic life as evidenced by swim track trace fossils. Its famous head crests were used for display in order to attract a suitable mate, and they likely doubled as a form of identification between Dilophosaurs.