In the heart of the Posidonia Shale in Germany, fossils reveal well-preserved secrets of these flying giants. What did they ...

The researchers found the fossils in the Soom Shale, a site known for producing fossils with well-preserved soft tissues, more than 20 years ago. They had hoped to find additional specimens ...

The discovery of the Burgess Shale fossils, high on a mountainside in the Canadian Rockies, is shrouded in legend. It was late August 1909, and an expedition led by the Smithsonian’s longtime ...