A “serrated blade” found sticking from a rock ... that also wiped out the dinosaurs, experts say. “A meteorite big enough to be called a small asteroid hit Earth precisely at the time ...

The iron is so concentrated in Komodo dragons that the serrated edges of the teeth ... this offers a window into the structure of dinosaur teeth and how they tore apart their prey.

A "serrated ... shaped teeth of tiger sharks. The species met its demise during the Cretaceous-Tertiary extinction event (known as the KT extinction) that also wiped out the dinosaurs, experts ...

4, 2024 — Chemists offer a new explanation for how collagen in dinosaur bones may ... have discovered that the serrated edges of Komodo dragons' teeth are tipped with iron.