Ok, so first of all idk how rex can kill apato??? And rex cannot kill anky or trike. Anky can brake rexes bones and trike is as strong as rex. And their is no way in the world a raptor can kill t rex. Ok just incase u say, Well then why is rex called king? Just because its king doesnt mean its the strongest. They named it like that cuz at the time when they discovered it, it was thought to be the strongest.