Rexy the Tyrannosaurus Rex is one of the major dinosaurs featured in the Jurassic Park series. One of the most famous animals created by InGen, the T-Rexes were placed on Isla Nublar and Isla Sorna to be used as attractions for the islands, one of them was successful. Like every other dinosaur, the T-Rex was cloned from DNA remains preserved within a fossilized mosquito which had fed upon the blood of actual dinosaurs over 100 million years ago and became subsequently trapped in amber. As the DNA remains were fragmented, the scientists mixed it with genes from modern animals to complete the gaps, so the T-Rex (like all the other dinosaurs in the park) is genetically very distinct from its real prehistoric counterparts. Males appear to have dark green skins while females have brown skins and juveniles appear to have a mix of the two aforementioned colors. The most notables members of the race are Rexy, Tyrannosaurus Buck, and Tyrannosaurus Doe.
It can be seen as one of the obstacles in the race chasing Aech's monster truck.