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InGen Files - Tyrannosaurus rex by Miyess InGen Files - Tyrannosaurus rex by Miyess
*Prototype.

Jurassic Park InGen Files: Tyrannosaurus rex

Age: Late Cretaceous

Diet: Carnivore (Hunter/Scavenger)

Length: Around 12 meters long when full grown.

Notes: EXTREEMLY DANGEROUS
Tyrannosaurus rex is one of the most well-known of all dinosaurs. It is no longer considered the largest of the theropods, with only Spinosaurus being ahead of it, but it is certainly the most powerful. Tyrannosaurus had very short arms with only two fingers. Although these were probably useless while hunting, its jaws were not: Tyrannosaurus has an enormous skull armed with teeth the size of steak knives. Unlike the teeth of most meat-eaters, tyrant dinosaur teeth are very thick and capable of crushing bones. The skull and neck bones show that T. rex had the largest neck muscles of any meat-eating dinosaur.

Tyrannosaurus Rex is capable of running as fast as 32 mph. They display some sexual dimorphism as adults. Males have more prominent brow ridges than females. Males also have a tendency to have visible facial scaring (probably due to battles over territory with other T. rex and carnivores or mates). Females are also lighter in colour than males, and are slightly bigger.

Males are slightly smaller than females, and are darker in colour. They also have a large throat pouch that females seem to lack. Males are typically green, while females are typically brown or grey.

Alan Grant states that the sight of Tyrannosaurus rex is based on movement, so if you don't move the animal won't see you. Dr. Grant used this knowledge to escape from the T. rex on Isla Nublar. Grant based this on papers by palaeontologist John Roxton wrote an article in which he stated that the brain of the Tyrannosaurus was very similar to that of frogs. Therefore, Roxton concluded that T. rex‘s sight was based on movement. As Grant had no expertise in brain anatomy he accepted the conclusions of the article. Supporting this theory is that the Tyrannosaur gives a loud roar to scare its prey into revealing their position by running away. The T. rex may then make the kill.

Tyrannosaurus is shown as being a protective parent. Tyrannosaurs are shown to pair off during mating, and both parents will remain with their offspring during its growth, exhibiting very powerful parenting and protective instincts, going to great lengths to ensure an infant's safety.

Tyrannosaurs are territorial by nature, and will attempt to drive away anything that might be deemed dangerous, whether animate or not. They are known to be efficient parents, with both male and female keeping close guard over infants and bringing them food for a considerable matter of months. They will ferociously defend their offspring during this stage from predators and humans, and will even travel far outside their native territories to find them if they get lost. Like most predators, they presumably teach their young how to hunt once the time comes.

Two Tyrannosaurs were present on Isla Nublar; one adult and one juvenile, although there was no interaction between them. The Tyrannosaurus had a sensitive skin, and therefore sought shelter from the sun under the canopy.



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:icondonotuseplz::iconmyartplz:
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:iconxenomorphscar4:
xenomorphScar4 Featured By Owner 2 days ago
Tyrannosaurs in jurassic park were larger than 12 meters. The sub adult male in part 3 was around 37 feet, the buck male in the lost world was 40-41 feet, while the female in the same movie was 42 feet I believe, the female in the 1st movie was 46 feet. If you're going based on jurassic park canon then it should be 14 meters when fully grown. If you're using actual facts then Nevermind. Still great job
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:iconmattoosaurus:
Mattoosaurus Featured By Owner Oct 12, 2014  Professional Traditional Artist
Could u color this? And where is the new version ?
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:iconak1508:
ak1508 Featured By Owner Sep 19, 2013  Hobbyist General Artist
looking great! but the tail needs more mass, seems too slender imho

other than that, applause! :D
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:icontheomnivore:
TheOmnivore Featured By Owner Dec 22, 2013
The animal seems to be a bit to slender in general, and it's stance seems a bit to upright.

But then again, in 2013 nobody watches Jurassic Park because of it's accurate portrayal of dinosaurs anymore.
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:iconak1508:
ak1508 Featured By Owner Aug 1, 2014  Hobbyist General Artist
Actually, of all the dinosaurs portrayed in terms of looks - Tyrannosaurus turned out one of the best. It's main drawback was the size of the arms - too big, but they fixed it in the 3rd or may be even the 2nd film, since in the 3rd film when you see the model and the dino in the film, arms dont look that big and massive anymore. And yeah - it needs to lean a bit more forward/down. I would also make the teeth on the sides (both the lower and upper jaws) larger to make them stand out abit more. Other than that - I dont see anymore errors in t-rex, while other dinos probably might have a lot more, if we talk about the "main" dino cast of the trilogy, not the cameo. Funny enough, many cameo dinos turned out almost 100% accurate to my point of view anyway compared to the majority of the main ones lol
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:iconmiyess:
Miyess Featured By Owner Dec 17, 2013

Thanks :)

I agree.

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:icondinobenten:
dinobenten Featured By Owner Jun 21, 2013
if it is based on movement then every tree on sorna and nublar would have had a rex run into it once or twice
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:iconmiyess:
Miyess Featured By Owner Jul 13, 2013
Nonsense. They can easily distinguish background movement from an animal quickly darting from the undergrowth in plain view.

The reason the dinosaurs in Jurassic Park had vision based on movement was because the geneticists filled the missing bits of the dinosaur genomes with the DNA of frogs – some of those genes coded for reproductive abilities in a single sex environment, and others for controlling the visual cortex. This is why the dinosaurs in Jurassic park were able to reproduce despite being all female, and it is the same reason the tyrannosaur had trouble seeing stationary animals. In the real world, tyrannosaurs could see just fine, but frogs really do have movement-based vision.

It doesn’t mean they can’t see a potential snack, simply that it does not register as anything of interest until it moves.

I tried to find a youtube video on it that I recently saw for you, but I couldn’t find it. Basically it was an experiment where they show a frog a horizontal line that looks like a worm wriggling and once they start moving the line the frog goes for it. Then they show the frog a vertical line ant doesn’t look like a crawling worm, and they can basically move/wriggle it all day and the frog won’t go for it. The researcher said you can basically throw a frog into a bucket of dead worms, and since they’re not moving – the frog will starve to death. It’s simply how their brains work.
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:icondinobenten:
dinobenten Featured By Owner Jul 14, 2013
well even though it only notices movement, touch, smell, hearing, and taste might be heightened to make up for sight.
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:iconmiyess:
Miyess Featured By Owner Jul 19, 2013
Indeed the other senses of a JP tyrannosaur easily make up for its’ shortcomings in terms of vision. You’ll remember in the first novel as well as in the second movie where characters are trapped by a tyrannosaur behind a waterfall and the rex is trying to get at them – for some weird reason; it sticks its tongue out and starts licking them...

If you examine the endocasts of fossil specimens, one of the largest sections of the tyrannosaur brain in the olfactory bulb. Once again,  recall the scene from TLW where the tyrannosaur finds Sarah, Kelly, and the rest of the survivors’ camp simply by smelling the infant tyrannosaurs’ blood on her clothes – even after they moved out of their territory.

I don’t think the sense of touch would play a big role in tracking prey, but hearing is definitely an important one, and there are also many examples from the novels and movies where the tyrannosaurs are clearly listening. A notable example would be from the first movie where Tim slams the door shut, and the tyrannosaur instantly looks down and sees them.
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