National Geographic has an interesting article about the case for feathers in Tyrannosaurus.
Tyrannosaurids may have borne anything from a few feathery tufts to decadent coverings of fuzz. The dinosaur’s appearance is open to multiple hypotheses. Scales-only cannot be taken as the default any more than totally-feathery tyrannosaurids can. But given how the story of dinosaur feathers has unfolded, I’d bet on the fuzz.
Read more at Feathers for Tyrannosaurs.
Geoff Jones is the author of the sci-fi thriller