The discovery, in a bizarre animal not closely related to birds, could change how scientists think about the origin of ...

More than 300 million years ago, during the Carboniferous Period, much of northern Illinois outside Chicago—including what is ...

Protein remnants in fossil enamel reveal new ways to study evolution. These molecules stretch our view of molecular ...

The well-preserved Sinopterus atavismus fossil, found in the Jehol Biota, contained intact gut contents, settling a long-standing debate about their diet. Researchers discovered an abundance of tiny ...

A study of a fossilized pterosaur from China has confirmed that some of these prehistoric creatures had a surprisingly varied ...