Tyrannosaurus Behaviour in Jurassic Park Part 1: The Original Trilogy @CalvinTheCarnotaurus
Tyrannosaurus Behaviour in Jurassic Park Part 1: The Original Trilogy  @CalvinTheCarnotaurus
Uploaded May 2026 | Updated September 2026, 7 hours ago
The Tyrannosaurus seen in Jurassic Park is one of the most iconic fictional dinosaurs of all time. I don’t think anyone found the shot of it breaking out of its paddock in the first Jurassic Park movie forgettable after leaving the theatres in 1993.

Every single Jurassic movie since the first film features Tyrannosaurus, whether it be the Buck & Doe couple from The Lost World, Ember in the latest instalment, Rebirth, or Rexy/Roberta, who appeared in the original Jurassic Park. Or perhaps you’re a little more cultured and prefer the T. rex individuals from the novels by Michael Crichton.

This video is part one of a six-part series analysing the Tyrannosaurus individuals’ behaviour throughout the Jurassic Park/World franchise. Part one will be focusing on the original trilogy of movies. Part two will be about the four latest film instalments. Part three will talk about Camp Cretaceous. Part four will be about Chaos Theory. Part five will loop it back around to the novels by Michael Crichton. And an additional entry will be made for the Indominus rex and Distortus rex, given both have Tyrannosaurus DNA in them.

I wanted to do the movies first, mainly because it’s been a while since I’ve watched the first films, and those were the ones that were a big part of my childhood. And, I thought it’d be good to first establish the portrayals in the movies, before looping back around to an in-depth analysis of the original source material. It’s worth noting that, despite him passing away long before Camp Cretaceous was ever created, the credits still list it as being based on Crichton’s novels. The same is the case for Chaos Theory.

The main point of analysing the behaviour is to see how consistent the behaviour is, and how much it deviates between each movie. I recall watching videos on YouTube throughout the years that said the original trilogy had the dinosaurs act more like real animals, while the World trilogy humanized them more, all for the animalistic approach to return in Rebirth. This series of videos will put that to the test and see how true that statement really is, at least for the Tyrannosaurus specimens in these films.
There’s also, as mentioned, the spin-off shows that are worth going through also to see how they portray Tyrannosaurus, and we can also see if there could be any potential scientific influence on the Jurassic franchise.
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Tyrannosaurus Behaviour in Jurassic Park Part 1: The Original Trilogy

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