There are fossilized skin imprints of T-Rex that prove they were covered in scales [0]. More generally, paleontologists know a fair amount of what ancient crea

There are fossilized skin imprints of T-Rex that prove they were covered in scales [0]. More generally, paleontologists know a fair amount of what ancient creatures looked like [1]. [0] https://www.smithsonianmag.com/smart-news/t-rex-skin-was-not-covered-feathers-study-says-180963603/ https://www.smithsonianmag.com/smart-news/t-rex-skin-was-not... [1] https://i.redd.it/02rv3y272cx61.jpg https://i.redd.it/02rv3y272cx61.jpg