From colorful displays to aggressive fights, mating rituals vary widely across the animal kingdom. But one of the strangest comes from male ghost sharks – also known as chimaeras – who use their teeth ...

The discovery proves it's possible for vertebrates to grow teeth outside the mouth Getty A new study discovered male ghost sharks grow teeth out of their foreheads on an appendage called a tenaculum ...

A peculiar dental condition known as shark teeth is gaining increased attention from parents and pediatric health care professionals across the United States as more families encounter the startling ...

Credit: Max Baum/Cover Images It’s not just humans who have to watch out for acidic drinks - as new evidence shows that the acidifying oceans are ruining sharks’ teeth. The predatory fish may be able ...