Tyrannosaurus rex

Tyrannosaurus rex is the heaviest and most power theropod dinosaur found so far.

Edge of Extinction
Tyrannosaurus rex was of the many dinosaurs cloned that escaped and took over the planet. The species as a whole survived and thrived while humans were dying out. Due to their large size, they must eat large quantity of food each day to survive. It’s likely that Tyrannosaurus rex and other large theropods were responsible for the extinction of animals like deers and ducks. It hunted large land animals and is known to attack humans. Shawn and Sky encountered one before being chased by it. But they escaped, only to meet Todd.

Juveniles were later seen but they were left alone.