A 115-million-year-old fossilized bird with a pair of long, ribbon-like tail feathers is the oldest bird ever found in Brazil. It was about the size of a hummingbird, and it likely boasted bright ...

At the Chinese Academy of Sciences, Xing Xu is looking at two beautiful dinosaur fossils, both with clear feathers on their arms and tails. In the smaller specimen, the feathers are like thin ribbons ...