Species Go Back to Ancient Times: Call Me Uncle Tyrannosaurus Rex!

Wu Yu traveled to a parallel world with an Earth online game. The rules of the Earth Online game are to randomly select a person from each country to participate in the game. The person who is drawn must choose a creature as his or her native species, and participate in daily competitions such as knowledge quizzes and species competitions to obtain points and rewards, cultivate the native species, and bring the native species back to ancient times. Every seven days, Earth Online will also hold a Species Duel National Games competition for participants to duel their chosen species. The winner can get rewards, and the loser will be punished by natural disasters. ... In this world where the concept of "survival of the strong" has spread all over the world, other people have chosen powerful predators such as tigers and lions. In everyone's opinion, creatures that are strong now will also be strong in ancient times. But Wu Yu knows that nature is not about "survival of the strong" but "survival of the fittest". In nature, the strong are not always strong. The strong creatures now may not have been strong tens of millions of years ago, and the weak creatures now may have been the overlords of the earth tens of millions of years ago. Wu Yu did not choose those powerful predators like others, but instead focused on the rooster that no one cared about. At first, people didn't take the rooster seriously, but as the game started, everyone discovered why the rooster was getting bigger and bigger. What the hell is the weight of 14 tons? What is it with a body length of 13 meters? 6 Tons of bite force, how do we play with this? Are you telling me that such a terrifying creature was transformed from a rooster? Before you returned to ancient times, you called me Chicken Brother and I wouldn't pick on you, but what should you call me after you return to ancient times?