Spotted ratfish, or “ghost sharks,” have forehead teeth that help them grasp onto mates. It’s the first time teeth have been found outside of a mouth.

Are those teeth on your forehead or are you just happy to see me? In the curious case of chimaeras, also called ghost sharks, the answer is 'both.' These forehead-teeth are attached to a retractable ...

Ghost sharks (also called chimaeras) are already weird. They have special electrical-sensing pores for navigating the deep ...

Life is strange in the deep sea. For the male spotted ratfish — a ghostly relative of sharks, also known as the chimaera — it gets stranger. When he finds a mate, he doesn’t just sidle up. He grabs ...

How can we combat this kind of disinformation and restore public trust in elections? It might be possible to essentially ...

To say spotted ratfish are unusual is an understatement. Related to sharks, they abound in the inky dark depths of the Puget Sound. Armed with a venomous fin, they swim gracefully along the sea floor ...

Shark teeth are a marvel of evolution. They are so sharp that many island cultures once used them as weapons and tools to hunt and cut up meat. Unlike human teeth, shark teeth line the mouths of these ...

Even sharks’ famous tooth-regrowing ability may not save them from ocean acidification. Researchers found that future acidic waters cause shark teeth to corrode, crack, and weaken, threatening their ...