The rig shark that the scientists were studying is a small shark, growing to just about 5 feet in length. Nieder said the ...

A small international team of marine biologists has observed the first known instance of a shark intentionally making sounds.

MAMMOTH CAVE, Ky. — A new-to-science species of ancient shark was recently discovered in Mammoth Cave National Park in Kentucky. The small shark named Clavusodens mcginnisi, or “McGinnis ...

The rig shark that the scientists were studying is a small shark, growing to just about 5 feet in length. Nieder said the noise it makes sounds a bit like a spark of electricity or a click ...