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Indominus rex was a new attraction in Jurassic World. The Template:W was created by combining the genetic traits of multiple species. Some of the known species that were used in the creation of the hybrid are Tyrannosaurus, Velociraptor,[1] Carnotaurus, Giganotosaurus, Majungasaurus, Rugops,[2] and Therizinosaurus[3] as well as modern animals like cuttlefish and an unspecified species of Tree frog.[1] It served as the main antagonist of the film Template:Film.



InGen's chief scientist, Dr. Henry Wu, was fascinated with the possibility to create entirely new species by gene mixing, ever since he learned that the inclusion of frog DNA had given the dinosaurs the ability to switch gender. In 1997, he created a hybrid plant.[4]

Years after its opening, the success of the park Jurassic World started to wane and the investors got worried. Masrani's Chief Operations Officer described the 2013 success as merely acceptable. "The world has seen what we have to offer, but they aren't in awe as they once used to be. We need to change that. You can't expect the world's greatest theme park to merely rely on the same attractions. We need to be proactive, thinking of bigger and better things."[5]

File:Hybrid predator escapes.png

Claw marks.

The result was a genetically modified hybrid of several dinosaur genera and modern animals. Unknown to Masrani was that Dr. Henry Wu, the creator of the hybrid, had made a deal with InGen Security Division commander Vic Hoskins to weaponize it in a grand scheme to have dinosaurs be used in military operations.[1] Development of the hybrid began in 2012[6] in the Hammond Creation Lab.[2] Upon Simon Masrani's announcement of the creation of the genetic hybrid, Indominus rex, online ticket sales for Jurassic World skyrocketed.[7]

The hybrid could run up to speeds of 30[2]-45[8] mph with its roar alone reaching 140db-160db, as loud as the liftoff and landing of a Boeing 747 airplane. Indominus rex had osteoderms across its body and horn-like decorations above its eye orbits, traits that originated from the abelisaurs used in its creation.[2] It also had well-developed forelimbs from a Therizinosaurus[3] complete with opposable thumbs and a giant sickle claw on each middle finger that I. rex used to grab prey and get in quadrupedal stances. A single swipe of its claws was able to incapacitate, and several were able to kill even giant sauropods like Apatosaurus. It was able to change color from the cuttlefish used in its creation, which was used as camouflage in hunting, but also helped the hybrid grow at a quick rate. [1]

The Indominus' jawline was, despite its template being from a Tyrannosaurus rex, very carcharodontosaurid-like due to it having Giganotosaurus in its genetic makeup. Due to this bit of instability, its teeth often jutted out at unnatural angles and many were broken. Indominus rex had a total of 74 teeth.[9] With Tyrannosaurus being in its gene pool, the hybrid inherited the massively strong bite force it had, which Indominus could use to even crush a bullet-proof Gyrosphere or break the neck of an Ankylosaurus.[1]

The tree frog DNA, which was intended to help them adapt to the climate of Isla Nublar, had allowed it to detect remove its own thermal signature. The hybrid could also detect the thermal signatures of others as well, though it is unclear if this ability came from the frog DNA because as no tree frog has this ability. Finally, the Velociraptor DNA used in Indominus creation gave it a high level of intelligence as well as the ability to communicate with Velociraptor individuals. Good examples of intelligence being one's plan of making everyone think she escaped and her ability to remember when and where they inserted her tracking implant.[1]

Though they do hunt for food, the first I. rex created was shown to kill mainly for sport. This individual also was known to have committed cannibalism, as she killed and ate her own sibling, which was the first thing she did as soon as she hatched.[1] However, since the I. rex who had exhibited these traits had a rough upbringing these behaviors may not be natural.[10]

Isla Nublar Incident (2015)

File:Indominus Rex Jaws.jpg


Two I. rex were meant to be kept in their own paddock that had 12 meter (40 feet) high walls. This was also planned in case one of them died. However, the older Indominus cannibalized her own sibling before it even hatched, and would also attack the workers of her paddock as well. Three weeks before their paddock was open to the public, Simon Masrani told Claire Dearing to consult Owen Grady to see if he was interested in taking a job requiring him to inspect the Indominus rex Paddock for any vulnerabilities after seeing her attempt of breaking the glass in the observation deck.

That same day, the Indominus later managed to avoid her temperature being picked up by the thermal cameras thanks to the frog DNA in her species and left claw marks on the walls to make them think she was able to climb over the enclosure's wall. When Owen Grady, paddock supervisor Nick and worker Ellis came in to investigate the damaged paddock, the hybrid ambushed them as soon as they got word that she was still in the paddock, making a quick meal out of Ellis in the process. As they fled, she managed to break through the door as it was not fully shut. Free at last, the I.rex managed to detect and eat Nick, but Owen evaded her by hiding under a nearby crane outside of her paddock and then cut the crane's fuel tank, masking his scent. The Indominus rex then headed off into Jurassic World park, attracted by the thermal signatures of the visitors there.

Her escape was not reported to Jurassic World visitors because Simon Masrani thought the Asset Containment Unit would capture her by following her tracker implant. The I. rex traveled south of her paddock having detected the thermal signatures of the visitors in Main Street. She managed to claw out her tracker, along with some flesh still attached to it, and ambushed the team as soon as they arrived, killing most of the troopers, including Katashi Hamada, Craig, and possibly other members of the team, convincing Owen that the island needed to be evacuated. She then went near the Gyrosphere attarction and attacked brothers Zach and Gray Mitchell who were observing 4 Ankylosaurus. In her attack, she agitated one of the Ankylosaurus who proceeded to fight back against her though her counterattack ended with her being killed by the Indominus via rolling her onto her back and breaking the neck. She resumed attacking the two brothers by piercing her mid talon into the glass and rotated the vehicle so the boys could see their demise. She then attempted to chomp the gyrosphere whole but got her mouth stuck, but attempted to smash it several times into the ground to crack it open, but the two brothers escaped by getting out of their damaged Gyrosphere and jumping off a waterfall. She gave out a loud roar in disappointment and headed to the Gyrosphere Valley.


Indominus inside the Jurassic World Aviary.

Shortly afterward, the Indominus attacked a herd Apatosaurus, killing five and fatally injuring one before moving on into the restricted area of Isla Nublar, leaving their bodies uneaten. While in the restricted area, the I. rex discovered Owen Grady and Claire Dearing inside the Visitor Center to which she took the opportunity to attack and chase them after pretending not to notice them and breaking through the ceiling in a jumpscare-like fasion. However, her pursuit of the humans ended when she saw the JW001 piloted by Masrani outfitted with a heavy machine gun in pursuit of her. She led her pursuer to the Jurassic World Aviary where she smashed through the enclosure's walls and scarred the pterosaurs inside out of the aviary to the open hole she created. As the freed pterosaurs lead to the destruction of JW001 and attacked the guests in Main Street, the Indominus traveled further into the restricted area of the island.

That night in the restricted area the members of Jurassic World's Velociraptor pack found her. However, she communicated with the raptors and became the alpha of their pack. As the leader of the pack, she commanded the raptors that were under her control to attack the humans that came with them and were in the area, to which they followed this order. Upon the initiation of this order, the InGen Security troopers, Owen, and Barry, who were following the Velociraptors opened fire on the hybrid. She managed to escape the brawl the firefight that ensued as the small arms fire had little to no effect on her, but she did nearly collapse on the ground when she was hit by rocket from one of the troopers while escaping.


Rexy and Blue fighting Indominus.

The I. rex finally arrived in Main Street where she met Owen, Claire, the Mitchell brothers and the three remaining raptors once again, commanding the raptors to finish them off. With Owen's attempt to regain Blue's trust by removing her camera a few minutes ago, she decides to make him the alpha again. Blue then screeches at the I. rex, who responded by knocking her into a wall, seemingly killing her. The raptors, now aligned with Owen's group again, proceeded to attack the Indominus while Owen Grady provided suppressive fire with his rifle. But the fight ends fairly quickly as she easily kills Echo by tossing her into a grill that engulfs her in flames and Delta by snatching her into her jaws and throwing her away. With the raptors defeated, the Indominus rex then proceeds to resume hunting Owen and the Mitchell brothers who are huddled inside one of Main Street's shops. She nearly drags Gray to her but is stopped by another dinosaur who challenges her: Rexy, Jurassic World's Tyrannosaurus rex.

Rexy carries out a heavy assault on Indominus, but Rexy is eventually brought to the ground by the hybrid's strength. The Indominus almost delivers the killing blow before she is then attacked by Blue who is still alive from the onslaught. This allows Rexy to return to her feet and grab the I. rex by the neck, pushing her into many of Main Street's buildings, all while Blue continues biting and scratching her. Finally, she is flung to the edge of the Jurassic World Lagoon where the Mosasaurus there detects the hybrid and proceeds to pull her under the water, presumably drowning her if the bite force of the Mosasaurus did not kill her first.[1]




LEGO Jurassic World

see Indominus rex/LEGO

Indominus rex appears in the LEGO Jurassic World video game.

Its role in the game's story mode is near identical to its role in the Jurassic World film, except that only one was created instead of two. She appears in all of the Jurassic World story levels.

The amber that unlocks Indominus is found in the level "Out of Bonds" and the boneboxes of that level can be collected to unlock the skeleton skin for the hybrid as well.

Jurassic World: The Game

see Indominus rex/JW: TG

Indominus rex appears in one of Jurassic World: The Game. It could originally be only unlocked by codes from Brawlasaur toys for use in the Battle Arena, but since June 10, 2015 it can be created for the player's park by fusing a Level 40 Tyrannosaurus rex and a Level 40 Velociraptor. There are two variants of I. rex that can be acquired, one that is pale like in the film, and one that is tan. Regardless of the color, they share the same stats.

Jurassic World

There are two toys of Indominus that are a part of the upcoming Jurassic World toy line. Retailing for $35,[11] the "Chomping Indominus Rex" has the ability to change skin color and can let out a roar upon pressing down on its arms.[12]

Another figure that is packaged with a Gyrosphere with a mounted disk launcher has a piece of skin that can be slid back to reveal battle damage and pulling the tail of the Indominus figure causes it to bite in a downward motion. This battle pack was also packaged with the Ankylosaurus figure from the same line as a Template:W exclusive.[13]

A biter Indominus figure was also made that would snap its jaws when its tail was pulled down.

I. rex is also a part of the Hero Mashers assessment where its parts can be used with other toys in the line to make unique creations.

There was a "Brawlasaur" figure of I. rex that was included with an Ankylosaurus "Brawlasaur". Another brawlasaur figure of I. rex was included in the brawlasaur battle set along with a Tyrannosaurus rex brawlasaur. This means that the Indominus rex is the only hybrid with multiple Brawlasaur figures.

LEGO Jurassic World

A figure of Indominus rex will come in the LEGO Jurassic World set 75919 Indominus rex Breakout. She has poseable legs, jaws, head, arms, hands, and thumbs. Her head is as large as a minifigure and is able to fit one between its jaws.

Behind the scenes

Director Colin Trevorrow said that it was this new dinosaur that gave him a reason to tell another Jurassic Park story.[14] Indominus is very similar to the Ultimasaurus, an unreleased toy from the toy line Jurassic Park: Chaos Effect that was a hybrid between Ankylosaurus, Stegosaurus, Triceratops, Tyrannosaurus rex, and Velociraptor.


Jurassic World - Featurette "Jack Horner on Jurassic World" (HD)

Jack Horner on Indominus rex.

A popular rumor about the hybrid before her name was officially revealed was that it would be named "Diabolus rex" or "D. rex" for short. Also in the original rumor, Indominus was said to have DNA from a Death Adder snake.


An Indominus rex toy prototype depicting an early design of the hybrid.[15]

In the Jurassic World storyboard, the Indominus is referred to as "Malasaurus" and "Malusaurus". It is also shown to eat what it kills unlike in the final film. Another divergence from the film was that it joined the raptor pack it had recently taken control of in the pursuit of Claire and the Mitchells.[16]

Its camouflage ability resembles the Carnotaurus from the novel Template:Novel who shared the same ability. Coincidentally, Carnotaurus DNA was used in the creation of Indominus.

The roars of Indominus were made from the vocalizations from many differ animals. To give the hybrid's vocal mass, the sound designers used vocalizations from Template:W, Template:W, Template:W, Template:W and Template:W. Template:W, Template:W, Template:W, and Template:W were used as well. The sound designers for Jurassic World did not use sound effects similar to the Tyrannosaurus to differentuate the Indominus from the famous theropod and wanted it to sound irrtable to the viewers to make them dislike the hybrid.[17] In trailer releases for Jurassic World, Indominus's roars were reused from Tyrannosaurus rather the roars heard in the actual film.

It is likely it has snake DNA in it as it also can "see" people's body heat in a similar way that the family Template:W also known as pit adders or pit vipers.

Many fans have noted that the Indominus rex is similar to the Baryonyx Rudy from the film Template:W or the fictional Vastatosaurus rex from Template:W. The hybrid also resembles an unidentified theropod that appeared in the first issue of the IDW comic series Jurassic Park: Dangerous Games. Furthermore, some have noted that Indominus is very Template:W in appearance.

According to concept art for Jurassic World, the famous fight between Rexy and the raptors was to occur in some kind of enclosure near a volcano in the rain instead of Main Street and there was one less raptor involved. There was also supposed to an animatronic Tyrannosaurus coming out of a waterfall, a reference to the scene in the Template:Novel chapter "Tyrannosaur" and Template:Film.

This hybrid as gone through many changes in appearance during the development of Jurassic World. The director of Jurassic World, Colin Trevorrow, has said that it was difficult to design "because we needed it to feel grounded in genetic attributes of animals on our planet right now.".[18] From the concept art for the film (see below) resembles an Template:W the size of a large theropod like Tyrannosaurus or Gigantosaurus with arms that were more therizinosaur than the final version. The toy prototype resembles Abelisaurus like the concept art, but is more slender with arms like a Velociraptor and a set of fangs on the front of each of its jaws. Finally, in the storyboard by Dave Lowery the Indominus closely resembles Gigantosaurus and its arms are somewhat shorter.[16]

Much like T. rex, though often referred to as "I-Rex", this is incorrect. Scientifically, it should be referred to as "I. rex", as "rex" is the scientific name for the species.

Concept art


  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Template:Film
  2. 2.0 2.1 2.2 2.3 Cite error: Invalid <ref> tag; no text was provided for refs named Jurassicworld.com
  3. 3.0 3.1 Cite error: Invalid <ref> tag; no text was provided for refs named WIRED
  4. InGen Technologies. (2014, November). Retrieved from http://www.masraniglobal.com/about/divisions/ingen/index.html
  5. Masrani Corporation, Masrani Fiscal Year 2013 Report.
  6. The January 2015 post of Masrani CEO's Blog mentions that Indominus rex was developed over the course of three years.
  7. Masrani Corporation, Masrani Fiscal Year 2014 Report.
  8. Jurassic World: Where Dinosaurs Come to Life
  9. Jurassic World Special Edition Junior Novelization, page 67
  10. Empire Magazine: May 2015 Issue, Page 84. Retrieved from http://www.jurassicworlduniverse.com/2015/05/09/full-jurassic-world-scans-from-empire-magazine/
  11. - 'Jurassic World' toy leaks look of monstrous Indominus Rex (2015, February 16) Retrieved from http://www.cnet.com/news/jurassic-world-toy-leaks-look-of-monstrous-indominous-rex/
  12. Business Insider - Here's what the dinosaurs in 'Jurassic World' will look like (2015, February 17) Retrieved from http://www.businessinsider.com/jurassic-world-dinosaurs-2015-2/
  13. JurassicWorld.org Twitter
  14. de Semlyen N. (2014, November 27). Exclusive: Colin Trevorrow Talks Jurassic World Trailer. Retrieved from http://www.empireonline.com/news/story.asp?NID=42864
  15. Chris Pugh, Twitter, Retrieved from https://twitter.com/ChrisLikesDinos/status/612791842342596608?utm_source=fb&fb_ref=Default&utm_content=612793715342479360&utm_campaign=JurassicJune&utm_medium=fb
  16. 16.0 16.1 davelowerystoryboards - Jurassic World (July 31, 2015) Retrieved from http://dlstoryboards.blogspot.com/2015/07/jurassic-world_31.html
  17. https://www.youtube.com/watch?v=VsnsJDd0u5U
  18. WIERD - Jurassic World's Director: I'd Stay Far Away From That Park (June 11, 2015) Retrieved from http://www.wired.com/2015/06/jurassic-world-colin-trevorrow-twitter-qa/

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