Jurassic Park's Doomsday rex EXPLAINED

It's been 10 years since hybrid dinosaurs have become a staple of the Jurassic franchise, but would you believe that we could have possibly got even more bizarre monsters introduced in this universe much earlier? Today on Coochi Center, we'll break down the most horrific and hideous hybrid to ever make it into the concept stage, the Doomsday Rex. Time for something that might have wound up being prophetic.

To begin, we'll talk about a bit of background explaining how this thing came to fruition. A lot of this happened before a lot of our channel viewers were even born. So, strap in because there's a bit we need to catch up on.

After the smash success of the first movie based on Dr Kryton's best-selling novel, there were plans immediately to turn Jurassic Park into a franchise. And given that this was in the '90s, that included an animated television series. The first pitch shortly was a sequel to the movie since the second novel wasn't written out yet.

This had a much more grounded styled plot with Isla Nublar getting renovated and a new park being set up and handling a plot with dinosaurs escaping on the mainland. Stuff that we would wind up seeing more than a decade later in the second trilogy. The idea of some kind of monstrous unusual dinosaur even lingered about in the tie-in comics from Topps and an early draft of the second movie, including a giant Super Raptor that wound up turning into the final boss for the Trespasser video game.

The second attempt at a TV series, however, the Lost World animated series was a completely serious pitch for a follow-up to the second movie that involved hybrid monstrosities, sci-fi weapons, souped-up giant versions of the normal dinosaurs. And this looking like something straight out of Resident Evil. This ungodly abomination was to be the big final antagonist for the series, the Doomsday Rex.

What exactly the plot was going to be is still elusive to this day. There just hasn't been much behind-the-scenes info besides the concept art by Philip J. Felix.

Today, we are going to explore this as much as we can, as well as speculate as to what the King of Doomsday was going to be capable of if it was real. The design. The Doomsday Rex apparently has two different stages it would have undergone during the series.

The first stage already was as big as most of the larger carnivores in the franchise. A three-headed cerberus of a monster sporting fleshy tendrils, a misshapen central body, and three different heads roughly in the shape of a Tyrannosaurus. This, alongside the name, is a pretty good indicator of at least one of the genomes involved being a T-Rex.

The baleful blob would have had a hard time rearing up, let alone moving around in the outside world. Even with its formidable jaws and huge size, more agile opponents like an actual T-Rex would be able to dodge around this thing and tear chunks. And you can forget about worrying about this thing catching up to you in an open area.

For a series about genetics gone wrong, this would have been the epitome of that. No point in attempting to discuss how this is biologically plausible since this thing looks like it belongs in Hollow Earth or Skull Island. Its borderline supernatural transformation to its second state would yield a far more formidable and also even more unbelievable creature.

Behold Doomsday, as most would have probably remembered it had this monster made its debut. Down to two heads now, but with a much more organized and recognizable body type as a theropod. essentially being a doubled up Tyrannosaurus with extra spines, two sets of elongated arms, more grizzly features, and we have something that looks like the final boss of a climactic series.

What exactly was in the genome of this thing is anyone's guess. The base is obviously still Tyrannosaurus, now recognizable with the two-fingered hands more prominent, but the spines on the top and strange state of the teeth could indicate an unknown hybrid splicing. This could have either given it new sensory abilities, additional weapons, or just an edgy amount of spikes that would make the Dominion Giga look smooth by comparison.

However, reaching this size makes us run into a big problem and one of the big reasons why you would never see this doomsday participating in the Great Hybrid War. See this right here? If this was an inent Tyrannosaurus, Doomsday would be somewhere in the ballpark of 15 m tall at the top of the head.

At that size, assuming that the show it features in doesn't severely underestimate its weight, Doomsday would weigh at a staggering 240 tons. However, looking at the label, this isn't just a typical Jurassic series Tyrannosaurus like the Buckando from the Lost World movie. This is another original monster for the series called a Super Rex.

Orders of magnitude bigger than the Rexes seen in the series. And according to the scaling from the human figure right here, this oversized turbo T-Rex would already be 9 m tall at the top of the head, about double the height of most of the T-Rexes from the first trilogy. So, what does this mean for the King of Doomsday?

It would have been more at home in something like the Monsterverse than anything in the more grounded Jurassic franchise, being over 30 m tall, about 100 ft high at the top of the head. The reason why nature never cooked up something like this is because of one huge rule. Square cube law.

For those new to the channel or who might have missed earlier explanations, square cube law basically states that when you double the dimensions of something, you don't increase the mass by two, you increase it by eight. Say we got a human that was exactly 200 lb and 6 feet tall. If you doubled their size, you are now doubling how tall they are top to bottom, how thick they are from front to back, and how wide they are side to side.

2 * 2 * 2 is 8. So, our new 12T giant doesn't weigh double what they used to at 400 lb. Instead, they weigh 1,600 lb.

So, back to our doomsday Rex. Scaling up a Tyrannosaurus to 24 m tall at the hip and adding some more mass for a second head and extra limbs. And this absolute colossus of a hybrid could have a mass of roughly 1.

3 million kg. That's right, that's 1,400 tons. Yeah, we weren't kidding when we said this would be something more fit to square up with some smaller kaiju than anything in the Jurassic franchise.

Just to exist at that size like this breaks every law of physics when it comes to animal biology. This thing would need bones stronger than steel and muscle tissue with thousands of times the torque than the real thing just to stand up or move. But we aren't going to cut this video short and leave you with your arms crossed wondering how powerful this thing could be.

Absent physics. So, what if it was real? How much power would we be talking about here?

At this huge size, bolstering all of its strength, this juggernaut would have a scaled up chomp of a T-Rex to a degree no other hybrid would be able to compare. In a previous episode discussing the biological plausibility of Rebirth's mutant T-Rex, we cited a study by Manibu Sakamoto which found that doubling the size of a dinosaur's jaws and keeping relatively similar shape roughly corresponds to a 50 to 60% increase in force. With the increase decreasing the bigger and bigger something gets.

So for any curious, it wouldn't be a simple matter of doubling T-Rex bite force repeatedly. Sheer mass and gravity works against an object the bigger it gets. So, taking this into account, The Crush of Doomsday scales up over 900,000 ntons of force in the jaws.

In terms of PSI, we are looking at over 200,000 PSI. Assuming these jaws can withstand such force, this thing could crunch through armored vehicles and shatter any dinosaur it pressed its teeth on. How the hell the protagonist were supposed to deal with this thing in the series is anyone's guess.

Other concept art shows off science fiction tech like mech suits and energy weapons. You know, exactly the typical things the Jurassic franchise often had in dealing with dinosaurs. Had this become the norm for the franchise, we would have expect to see a half-trunk Jäger unit in ACU storage by the time the Indominus busted out.

Unless the hybrid got shrunk down considerably by the time it would have shown up in the series, this thing would have taken some serious heavy ordinance to take down. either some powerful device like a high-grade explosive, some kind of synthesized boweapon, or an outright natural disaster like a volcanic eruption. We are talking about what is essentially a kaiju instead of a dinosaur.

After all, doomsday Rex absolutely would be doomsday to anything it encountered if this thing was up and running around. Soraods would become snacks, and previous titans of terror, like the normal Tyrannosaurus, could literally get stomped underfoot. So, how practical would this animal be?

In a word, just no. Hell no. Let's remember that absolutely massive tyrannosaurs and carnosaurs like T-Rex and the Giga were already pushing the limits on how big a bipeedal animal can get.

Supporting all of your weight on, let alone trying to run and maneuver upon just two legs means each leg is under a lot more force than on a quadriped. Even with the physics warping that just tends to happen with any fictional franchise, the cloned creations in the Jurassic franchise are still supposed to be normal flesh and blood animals. They just don't break physics to the same degree, something like Godzilla.

Now, certain types of animals can have chemically and structurally reinforced bones, for example. But at the end of the day, bone is still bone. And no amount of leg bone in the shape we see here is ever going to hold up even a fraction of that weight.

The largest that something the shape of the doomsday Rex could get is a bit nebulous, but over 18,000 kg or 14 tons is probably close to the limit. And that's with it living in captivity. No way could something that big survive in the wild with this kind of condition.

At this size, the Doomsday Rex would be about 5. 5 m or 18 feet tall, about the same height as Rexy and Dominion, but packing a lot of extra mass with a thicker torso and second head. Still gigantic compared to most other Predators in the franchise, but being even just this size would mean keeping up any amount of agility or speed would be very difficult.

Smaller is better here. Our more viable T-Rex would likely be too front heavy, making it awkward to move around. that despite its appearance would actually have issues fighting without a longer pair of forlims to aid in balance if it tips over.

And that's without getting into the internal issues. The doomsday resembles a case of conjoined twin syndrome. So the internals would probably be pretty similar.

This condition essentially means two individuals are sharing a body because they didn't fully divide as egg cells. The specific term we're looking at here is probably a case of what is called dice parapagus. This is where the two individuals share most of the same lower body but have a split spinal cord somewhere along the torso to have two separate heads.

Multiple sets of arms called tetramrachius can also happen in some cases. Dicophilic parapagus is survivable and the pair can live long lives if the twins make it past infancy especially if certain organs like the heart are also doubled. This doesn't always happen, however.

So many individuals are tragically still born, often because they had just one heart that couldn't keep up with double the burden. And this leads to another problem with this animal bringing its own doom upon itself. If it really did start out as that three-headed blob, that means some kind of bizarre metamorphosis happened from the first to second stage, meaning one of those heads was either destroyed or perhaps even more gruesomely might have been absorbed into the body while it was maturing.

Whatever was left of that head and any other organs attached essentially would become a parasite in its own body, sapping nutrients, overtaxing the organs even more, and causing all manner of disruptions. A real two-headed tyrannosaur probably did exist at some point or another. Doubled up animals have been found in the wild and in the fossil record.

But in this kind of case, doubling the bodies wouldn't double the mass. Stress on the body would make even that one ina- million chance the form is functional. A twinned Rex might actually wind up somewhat smaller than a normal T-Rex.

Smaller and less able to hunt down big dangerous game. A more realistic Doomsday Rex might still be sufficiently dangerous to hunt down lesser animals. So possibly like its more modern counterpart set to stalk the screen in Jurassic World Rebirth, Doom might come for a slower moving, squishy, and easy to catch food.