The fossilized remains of a newly discovered ancient shark species found in the depths of Kentucky’s Mammoth Cave National Park reveal not the sharp, pointy gnashers you’d associate with Hollywood’s ...

TERRIFYING footage shows the moment a group of fishermen wrestled a great white shark back into the water after catching it.

Rendering courtesy of the National Park Service A shark no larger than a human hand that ... gets its name from the shape of its back teeth, which resemble old iron nails, and retired National ...