Komodo dragon teeth are ironclad. Literally. The serrated edges and tips of the reptiles’ razor-sharp chompers are lined with a layer of iron, researchers report July 24 in Nature Ecology & Evolution.

As if Komodo dragons weren’t formidable enough, it turns out that their razor-sharp teeth are capped with iron for longevity. Several mammals also have iron deposits in their teeth, but none as ...

Komodo dragons are compared to carnivorous dinosaurs for good reason. They are the largest living lizard on the planet. Their large, serrated teeth can tear apart almost any kind of meat, including ...