Part of the fight scene between the T. rex and the Indominus was inspired by a video clip that Spielberg shot of his dogs growling and lunging at each other. Early in pre-production, Tippett helped Trevorrow plan and choreograph the battle sequence by having a scale model created for the scene. Previsualizations of the scene were then created to assist in filming it. Tippett also visited the set during production and later discussed the creature animations with ILM. Trevorrow included several creatures he felt had always deserved a big scene: "I didn't want to just throw the kitchen sink at it. Each of these movies has done a good job at just very carefully, in a measured way, increasing the new dinosaurs that you see". Several creatures make notable appearances in the film:
