The little dinosaur was sent back on the earth after being arrested by aliens for genetic experiments which makes it developed itself by eating other creatures. The more it eat, the more it develop .
Aliens have traveled to the earth in Jurassic era and hunted dinosaurs . They selected the best in each species . Then they used the dinosaur's genes to modify and breed for the best dinosaur specie. The experiment was not as expected because most of the dinosaurs are weak . Some of them cannot control . In the final experiment, aliens mixed all dinosaurs’ breeds together to get the ultimate breed but the result was a weak dinosaur . Therefore the aliens left it on the earth without knowing that this dinosaur could develop itself by eating !!!!