A massive Rancor-like monster can be seen in theJurassic World Rebirthtrailer, prompting viewers to wonder what kind of dinosaur it is and how it came to be.2025’sJurassic World RebirthseesGodzilladirector Gareth Edwards and originalJurassic Parkscreenwriter David Koepp revisit the franchise for the first time since 2022’sJurassic World Dominion. AlthoughJurassic World Dominion’s endingdidn’t leave much room for a follow-up,Jurassic World Rebirthpromises to expand on the world of the series without outright retconning the previous movies.
Koepp and Edwards promiseJurassic World Rebirthwill be a return to the franchise’s original strengths, and its synopsis seems to affirm this. Scarlett Johansson stars as Zora Bennett, a special operative sent to a remote tropical location where dinosaurs still survive. The rest of the world has proven inhospitable to them, but the DNA of the few surviving dinosaurs may contain the key to manufacturing a life-saving drug. Bennett’s operation grows complicated when she comes across a civilian family whose boating holiday has gone horribly awry. The unlikely band must stick together to survive the wilds.

What We Know About The Monster Dinosaur’s Creation
The Rancour-Like Monster Is Not Necessarily A Real Dinosaur Species
The first full-length trailer forJurassic World Rebirthwas released on February 5, and viewers immediately noticed that a strange new dinosaur can be seen stalking Mahershala Ali’s character Duncan Kincaid. Although the audience only gets a glimpse of the dinosaur, it doesn’t look like an existing species seen in earlierJurassic Worldmovies. This might be becausethe giant dinosaur seen inJurassic World Rebirth’s trailer could be a horrific hybrid created by mistake, judging by comments that producer Frank Marshall made toVanityFair.
Marshall told the magazine that some of the monsters seen in the trailer weren’t traditional dinosaurs, but rather “Mistakes” caused by genetic engineering. Per the producer,”These are the dinosaurs that didn’t work. There’s some mutations in there.“The monster seen in the trailer certainly seems to be a mutation of some kind, merging the Rancor, the Xenomorph from theAlienfranchise, and actual real-life dinosaurs in its creature design.

The Influences Behind The Monster Dinosaur In Jurassic World Rebirth
The Xenomorph And The Rancor Clearly Influenced Jurassic World Rebirth’s New Monster
Although theJurassic Worldfranchise’s new dinosaurs were divisive, it is hard to deny that this monster is uniquely threatening and its status as a genetic anomaly makes it all the more unpredictable. Early on in theJurassic World Rebirthtrailer,the monster can be seen in a glass tube and resembles a T. rex crossed with a Xenomorph. However, when seen later in the trailer, staring down a terrified Duncan at night, the monster looks more like the Rancor seen inReturn of the Jedi.
SinceJurassic Worldintroduced the Indominus Rex as its new, uniquely threatening dinosaur and its sequelJurassic World Fallen Kingdomfollowed this up with the Indoraptor hybrid, it is not surprising thatJurassic World Rebirthfeatures another new dinosaur hybrid. Although Koepp teased thatJurassic World Rebirthwill revisitJurassic Park’s storyin some pivotal scenes, this doesn’t mean that the presence of hybrid dinosaurs is a mistake. In fact, this arguably strengthens the franchise’s prevailing theme.
Jurassic World Rebirth’s New Dinosaur Looks Like The Franchise’s Scariest Yet
Jurassic World Rebirth’s Rancor—Like Monster Is Massive And Unpredictable
TheJurassic Worldmovies, like theJurassic Parktrilogy before them, constantly return to the recurring theme of human scientists playing god despite the potentially legal consequences of this folly. In this regard,the dinosaur seen inJurassic World Rebirth’s trailer represents a step forward for the franchise. It is huge, looks truly monstrous, and is obviously incredibly dangerous but, as Marshall notes, it wouldn’t exist if scientists hadn’t continued to toy with the genetic material of dinosaurs long after the disasters at the original Jurassic Park and Jurassic World resorts.
The monstrous mutation seen inJurassic World Rebirth’s story was created by people rather than nature.
The new Rancor-like dinosaur is a testament to the foolhardy determination that the franchise’s geneticists have when it comes to messing around with dinosaur DNA. Even the reboot’s heroine Zora doesn’t have clean hands here, since Johansson’s character is on a mission to retrieve more dinosaur DNA to facilitate more testing by more scientists. The monstrous mutation seen inJurassic World Rebirth’s storywas created by people rather than nature, so it’s fitting that it is scarier and more dangerous than any real-life dinosaur.
Every Dinosaur In Jurassic World Rebirth Explained
Jurassic World Rebirth includes a wide range of dinosaurs with some returning after past appearances and others making their franchise debuts.
As theJurassic Worldmovies made their fictional dinosaur hybrids more elaborate, the franchise used these to comment on the ways in which unregulated scientific experimentation can have unforeseen consequences. Now,Jurassic World Rebirth’s trailer offers the most terrifying example of this issue to date. The Rancor-like dinosaur that is glimpsed throughout the trailer is one of the most threatening monsters seen in any of the movies so far, butJurassic World Rebirth’s new dinosaur is all the more scary because it is ultimately the product of human engineering.