The lions’ teeth were damaged during their lifetimes. Study co-author Thomas Gnoske found thousands of hairs embedded in the exposed cavities of the broken teeth. Disclaimer: AAAS and EurekAlert!

Most of us will need dental work at some point — it's rare to get a proper look at how the process happens. Insider spoke to Sami Shahhal, a restorative dentist and owner of a dental-educational ...

In 2013, a broken tooth of a Tyrannosaurus rex found in another dinosaur’s tail bone offered the first hard evidence that the king of all carnivores hunted live prey. Previous discoveries of ...