Fossil teeth of extinct megalodon sharks have grooves made by other megalodon teeth, hinting at violent encounters between ...

Sand tiger sharks, also known as gray nurse sharks, have a deceivingly ferocious look. They are large-bodied and display a mouthful of sharp teeth that protrude in all directions, even when the ...

As they bury their heads in the sand, the rays are exposed to predators. A fine-tuned antenna sticking out of their backsides would help the rays detect trouble before it was too late. “A shark ...

The BYD Shark is a plug-in hybrid pickup that Americans can't have. A new video shows it handling brutal Australian desert ...

Researchers presented the ancient shark's remains in several glass urns, including one containing a giant, sharp-toothed jaw. "There are not many complete shark (fossils) in the world ...