See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Two new snake eel species discovered in Vietnamese waters, one with ...

Scientists found a 3-foot-long creature with “sharp” teeth in a river in Vietnam and discovered a new species, a study said. Photo from Hieu Do Quang via Unsplash In a river of southern Vietnam, a ...

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.

In the history of teeth, perhaps no tooth is as famous as the saber tooth. These long, blade-like canines seem almost perfectly optimized to kill prey. They've evolved at least five times in mammals, ...