The T.rex and Spino: Why Were They So Close To Each Other?

Movie logic.

Maybe the Rex wandered out if its territory because it sensed a carcass in Spino's territory. Dunno. 

Yeah, movie logic, lol.

The true question is: why did T.rex attack Spinosaurus? Those two dinosaurs occupied two different niches, and they would simply avoid each other.

Once again, movie logic ;)

Well wasn't T-Rex depicted as a scavenger in this movie? he would have sneaked into Spinosaurus territory to eat or somehting?

Also movie logic.

Movie

Logic.

There's got to be a Logical Explanation here. 

Keep in mind, These are Genetically created Monsters that Resemble dinosaurs. 

It doesn't Nessicerly Mean they'll fall into set territories or hunting Patterns.

It's imagined Masrani Perfected the genetics to make them Closer to Dinosaurs then before, this as to make them more lethal in JW. 

Although hammond came far, He probably was a little off. 

Thus, The fact that these Two Predators do not know to Avoid eachother.

It's a Genetic Fault, They were never intended to Mix and mingle, The fences were never meant to go out. 

As well, Instincts are probably a Factor here, Right?

Wrong. 

Spino and Rex are from two different eras, Lets say the Instinct carried over in the Blood Samples, Rex still wouldn't know better than to avoid Spino, Because rex was one of the largest Predators in Creataous North america. 

It had little to No actual Rivalries for it to worry over. 

Same goes for Spino. 

They don't know what this other Species is. However, They are intreading on eachothers Territories. That's something they do have an Instinct for. 

Thusly, the begin fighting. 

See, It's not always "Movie Logic"

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Lol, paden. As for the monsters thing, they are still technically dinosaurs, just slightly hybridized ones. Like the T. rex is still a T. rex, just maybe a Tyrannosaurus rex-nublarisis. Slightly changed, but only slightly.

Well according to Jack horner, it was a scavenger (but we all know that all theropods or most active carnivores scavenge), so which this theory probably lead to the reasoning Rex was close to Spino. 

@Primal King

Due to the lack of Info Provided by Stephen Speilburg, I've been forced to go with Book Cannon over Movie Cannon on that. 

As so. They're not 100% Dinosaur. That's littearlly, Impossible. We can't acheive that, And we never will. (Unless in the Invention of a Time Machine but Shh... Thats laters talks)

They carry A Large, Amphibean DNA Chunk. For the sake of having them Turn out Dinosaur looking, It's somewhere from 60-40, To 90-10. 

The Genetics is the problem. It produces a Dinosaur, Yes... But it isn't a real dinosaur. 

REX FAN 684 - What a very interesting premise! Hmm. You know, I've actually never given this aspect much thought? Looking at it from the perspective that the animals were "genetically engineered, theme park monsters", I'd say they were so close together because they didn't know any better ("Oh, bloody hell! This is your territory, old boy? Would you fancy a share? No; you want the whole thing, do you? Alright. Let's bite away at each other, then. That usually solves these sorts of problems."). On the other hand, if Spinosaurus Aegyptiacus was indeed the massive, land-going super predator that some speculate, it's possible it was a marauder and simply roamed wherever it pleased - pillaging whatever it wanted regardless of territorial bounds! Perhaps it even searched for the territories of other predators in order to take advantage of kills and unobservant theropods! :)

Movie logic over rules everything here.

But ignore that, and what do you get?  An accident.  One-time thing that these 2 met.

Or perhaps that Spino was the super-marauder that Something Real hypothesized.

Sadly Something Real, I won't agree with your proposal, and here's why.

Keep in mind that both the JP3 Spino and Rex weren't fully grown.  They were teenagers (I know, the T.rex didn't look like it, but imagine him as a 17 year old, and according to growth charts of T.rex, they would have looked close enough to their parents by that age, just a bit smaller).  And the 2 largest therapods on Sorna were the two parent T.rexes from The Lost World.  Sure, the Spino is a bit bigger than either one, but against 2 adult Rexes?  He never would have stood a chance.  He was young, and if you ever encounter an adult rival, no matter how realistsically bigger you are, you're going to either back down without getting hurt, or lose enough that you will back down.  I highly doubt Spino would have gone whereever he wanted to, because if he did and was that cocky/confident, he would have encountered the 2 adult T.rexes soon enough and lost.  Teens will be teens.  

There is a reason (other than movie logic) that Spino and teen-Rex were far away from Mom and Dad Rex.  They fear those two giants, not only because of their size or protective instinct, or even numbers.  They fear them because of their stature and their combined experience.

"But that was Isla Nublar, this is Isla Sorna." Rex Parents weren't there. But I agree, 2 always beats 1...in the matter of large theropods of course.

@paden, a better word would be "pure" rather than "true." IMO they are true dinosaurs, just not pure ones. Now, I've done some research on genetics. If you take a cross-splicing and replicating into thought, then there would only be about 1.32224% amphibian DNA. (Yes, I was bored enough to do the math.)

@Leviathanteratophoneusferox, The Lost World and JP3 both took place on Isla Sorna.  Different regions I think, but the same island nonetheless.

ALPHADINO65 - There's nothing sad about your choice to disagree with me! Your assertion is another perspective from which to view the notion - and an interesting one at that! Never worry about disagreeing with me during healthy discourse! :)

I am going with scavenger theory....-_- 

I know Rex ISN'T A SCAVANGER!  However this movie, thats how he was depicted. I belive that Spino took down the prey, Rex scavenged. 

I think I know why they attacked each other, in the trailer, and behind the scenes, up first they just roar(intimidating). They used animatronics for this. The spino "smashed" the head of the rex (buck/bull re-use). They didn;t use the scenes. But spino clawed Rex, maybe this aggrovated Rex to go full on assault, not knowing how powerful spino was.

Maybe the Airstrip was like a "barrier/invisisble wall", spino only crossed when he was attacking his prey.

I don't know movie logic I guess    -----    /   -----

                                                    ___________ 

BTW RexFan...Go Clones! 501st for the win!

#YouBrokeJurassicWorldNews

I'm glad this discussion turned into such an interesting conversation.

And JPCerato, yeah buddy! ;)

MaryChristine, what do you mean?

@Primal King

Regardless.

They still shouldn't possess the DNA Or instinct to remain apart from eachother due to the Time Periods of Orgin. 

But lets go on a limb here.

Lets say this Rex, Is infact, The Infant from TLW. 

Lets say it's Parents taught it to remain away from some of the Other Predators. 

Due to a movement of Prey at one point, Or shortage of them, The Young Buck is forced to move elsewhere to feed. 

Thus he comes across the half eaten Carcass that the Spino was eating.

Not knowing better, The rex begins eating. 

When he follows Dr.Grant's team he comes across the spino.

They're seperated by Millions, And MILLIONs of years of Evolution.  

The Rex doesn't know to flee or Fight, Going with Instinct, He's claimed this as his terroritorry, Under which the Spino is Impedeing, When It is infact, the opposite way around. 

Neither is experienced in what to do, But assuming the Spino Has accumulated a large collection of land, It's assumed he most likely killed or forced out other species. The Spino has the upper hand due to it's Extended knowledge. It doesn't require to Rely on Instinct for this one. 

The young Buck has some Knowledge in it, Having killed Prey before, But it's not Expecting another Apex Predator. 

The Rex and Spino Duke it out, Ending in the rexes death. 

It's in the DNA The rex was going to die. 

Paden, technically, the infant from TLW was a female and it's generally agreed upon that it was not the young male from JP3 ;)

Really guys?

"Be careful with that. T-Rex. It scares some of the smaller ones away, but it attracts a really big one with a fin."

That's what I call movie logic. I know what you're referring to. I meant more so if this was a real life situation.

RexFan I'm not 100% sure, but I pretty sure...the infant was a male....

They refer to "it" as a her/she some scenes...then later he/him...and he looks pretty green to me...but I'm 100%with you on the infant not being the JP/// Rex ;)

And those missing scenes! Never realized how much I like the "young" colours/bright colours on this Rex!

As for the Clones...I love these guys...especially the guy in the middle...you know...Colt...badass! Credit to Havoc and Blitz aswell :D

I always thought that the runway was used by the Spino as a marking for the end of his territory, and ventured to the other side to pursue the humans, landing up in the Rexes territory.

JP Cerato, Colt is one of my favorites.

I doubt that the film makers actually thought about that so don't beat yourself up over it but this is a good point, I'll just say that the Spino was depicted as a Dino-Killing Badass, the Baddest Super Predator of them all, so if it was in T-Rex territory it wouldn't matter cause it could take it on and it fits the dinos personality in the film so it just didn't care, theres probably a better explanation here somewhere but this is what i'm guessing. 

One of this movies many flaws. Multiple raptor nests in a wet area and un covered. There should have been one nest belonging to the prime or alpha female and it would have been covered in leaf litter and soil for incubation. Two prime predators would never have been so close to each other. The TRex was feasting on a huge carcas and would have had no need to chase tiny humans. And of course we now know that as a fish eater the incredibly over sized Spino probably wouldn't have been in the middle of the forest at all. Don't start me on the voice box 3d printed vocalisation scene......

Yeah, both of you make more good points.