Paleontologists may have uncovered the traces of a dinosaur that may have been limping, thanks to fossilized footprints preserved in stone for over 150 million years. In a Nov. 25 press release from ...

You might not think a paleontologist looking for 66-million-year-old fossils would need to ask a rancher about his great-grandmother's job in the Wyoming badlands. But that's what Paul Sereno, a ...