The Painted Hills unit of John Day Fossil Beds National Monument will stop you in your tracks. Stripes of red, gold, black, ...

A new form of imaging has unseated an octopus from its oldest fossil title, but resulted in a new discovery in the process.

The world's oldest octopus fossil is no longer an octopus. A new study by researchers says the 300-million-year-old creature ...

For years, this fossil seemed to tell a thrilling story. Here was an animal from more than 300 million years ago that ...