In fossil leaves, puzzling structures are often visible under the microscope. Researchers have now been able to show for the first time that they originate from calcium oxalate crystals. On the one ...

Quartz crystals found in a fossilized bird complicates the mystery of its diet and what role it played in its ancient habitat. (CN) — Scientists studying a dinosaur-era bird fossil found quartz ...

It’s hard to know what prehistoric animals’ lives were like—even answering seemingly simple questions, like what they ate, can be a challenge. Sometimes, paleontologists get lucky, and pristine ...

The fossil of a bird that lived alongside the dinosaurs was found with some sort of rocks in its stomach. Previously, researchers thought that these rocks were swallowed on purpose to help clean its ...