A shark expert, whose own curiosity about these fascinating fish was sparked by the movie "Jaws," explains some of their ...

Megalodon teeth are the largest of all shark species. With teeth that can measure up to the size of a human hand, it is easy ...

Over 500 species of sharks exist in our oceans today, ranging from hammerheads (Sphyrnidae) to tiger sharks (Galeocerdo ...

Once I learned about this unique and extreme reproductive mode, I was enthralled and wanted to research the species more. At different life stages, sand tiger shark teeth change in morphology. The ...

A new species of ancient shark was identified by teeth found in a Kentucky national park. The teeth were found at Mammoth Cave National Park, which encompasses some of the Mammoth Cave ...

Embedded in its jaws were triangular teeth the size ... including collecting a specimen of a new species of shark and discovering a shark graveyard in the deep ocean.

The “nail tooth” portion of its name comes from ... “We’ve ended up finding at least 70 different kinds of shark at Mammoth Cave from a variety of levels within our rock strata,” Toomey ...