I Turned into a Prehistoric Beast

An accident infinitely implanted a "new" world full of mystery and cruel retro-style environment. There is no modern technology here, and there is no human being as the senior ruler. Instead, there are all prehistoric creatures in each era, which can be divided into top predators, secondary predators, non-predators, and prey. It is referred to as the "behemoth" era. Su Yu was involved in the battle for survival, starting from the transformation of the identity of a megalodon and gradually moving towards the path of domination and evolution. (In the future, there will be transformations of the identities of various prehistoric behemoths, not limited to the megalodon, including mosasaurs, plum whales, ichthyosaurs, Tyrannosaurus rex, Giganotosaurus, saber-toothed tigers, etc. Later, mecha elements will be involved, and everything will refer to the Ark Tek mecha elements... But this article has nothing to do with humanities and pet taming)