Devouring and Evolving in the Age of Dinosaurs

On the Cretaceous grasslands, where the strong prey on the weak, Lei Claw is a small Tyrannosaurus rex abandoned by his pack. He is only two-thirds the size of others of his kind. Then one day, three savage Gorgosaurs corner him, and he accidentally falls into a mysterious meteor crater. There, he touches a strange blue-glowing crystal, awakening something within him called the Evolution System…