Is it possible that if a live today, the tyrannosaurus may not attack Humans?

Hey Lily! In territorial defense,probably. Scientists say they had keen eyesight and a good sense of the smell, they would spot you easily if you invaded their territory. If there are no herbivores that used to be their main food source, they will probably settle for other large animals, not humans. We are just too small. So, yes, there is a possibility that it may not attack us.