These remarkable fossils, described today in a new Nature Communications study, were discovered by paleontologists Lida Xing, Ryan McKellar, and their colleagues at a site in the Kachin Province of Myanmar (formerly known as Burma). Incredibly, the 3D fossils still contain traces of hair follicles, soft tissue, and feather arrangements—this from a winged creature that lived about 100 million years ago. This is the first time that scientists have had the opportunity to study these particular physical characteristics in bird that became extinct at the end of the Cretaceous period…