Talk:Tyrannosaurus/@comment-38010379-20190121221314/@comment-5815431-20190121222740

We have skin impressions that show that Tyrannosaurus was at least 95% scaly, and there's no reason to think the final 5% would be feathered. Tyrannosaurs split from the group that would evolve into birds about 100 million years before the end of the cretaceous, which is plenty of time for one of the groups to lose feathers.