When it is ready to charge, its roar is similar to the death roar of Ceratosaurus. The Tyrannosaurus is unique from other carnivores in several ways: it never runs away from you (and will chase you across the entire island, if you use super run to get away from one), but it does not immediately chase you when it detects you, instead pausing, occasionally sniffing once, and roaring, giving you a limited time to kill it. An individual animal arrived at the Fort, destroyed the surrounding wall, and caused the Fort's abandonment. This animal has made its mark on the planet's surface, particularly in Fort Ciskin. Tyrannosaurs, like most animals on FMM UV-32, are mainly solitary, but since they will not stop chasing the player, attracting the attention of multiple tyrannosaurs may lead them to hunt you in unorganized packs. This call has the farthest range in attracting these animals. Tyrannosaurs produce a terrifying bone-shaking roar when communicating drawing in Tyrannosaurus from long distances away. It has very good sight, excellent scent, and very good hearing. Attempting to shoot this dinosaur anywhere but the targeted eye area is futile, only making it more aggressive, it is highly advised to maintain caution when in proximity of this dinosaur. These dinosaurs possess an extremely tough hide capable of withstanding repeated fire from typical weapons. This extremely aggressive carnivore will consume any animal in its sight. It is also much larger than the Earth species, with the largest known Earth Tyrannosaurus being 42–43 feet long (12.8-13.2 m) and the largest known FMM UV-32 Tyrannosaurus being 65,15 (19,54 m) feet long.

This is in sharp contrast to the Tyrannosaurus of Earth, which is usually thought to have only been capable of running 15-20 miles per hour. Despite its large size, this animal is quite agile, easily moving through areas other carnivores can't. It is about the same size as Giganotosaurus, a similar but unrelated dinosaur. One of the most feared of all dinosaurs on FMM UV-32, it is two stories tall (the same overall size as a house), and possess razor sharp teeth the size of bananas in its enormous jaws.

Primal prey dinosaurs