A study explores how uranium isotopes in fossilized shark teeth could provide insights into historical ocean anoxia, with mixed results.

A small but fascinating collection of Megalodon teeth exhibit deep bite marks from other Megalodons, raising questions about ...

The Chipmunk Shark was believed to have swam along the ocean floor that is said to have covered much of central Kentucky ...

Past studies have estimated the megalodon’s length and body shape by comparing it to the great white shark, which has similar large, serrated teeth. But Sternes said those studies relied on ...

Along with teeth, the existing fossil record includes parts of giant shark skeletons from the same period, including a 36-foot-long (11-meter-long) section of a fossilized spinal column from ...

These jaws were lined with 276 teeth, and studies reconstructing the shark's bite force suggest that it may have been one of the most powerful predators ever to have existed. Humans have been measured ...

A tiny shark species dating back hundreds of millions of years has been identified at Mammoth Cave National Park in Kentucky, the National Park Service said.

The shark’s distinctive teeth were identified as a new-to-science species during a Paleontological Resource Inventory at Mammoth Cave National Park in southern Kentucky this year. The inventory ...

NOVA: Do sharks make sounds? Gruber: They make hydrodynamic sounds when swerving and accelerating, and they make crunching sounds with their teeth and jaws. But they don't have special organs for ...

hooked teeth. The basking shark’s scientific name, Cetorhinus maximus, roughly translates to “great-nosed sea monster” in Greek. In reality, these placid sharks, found the world over ...