A large tiger shark carcass washed shore on Nantucket off Cape Cod, Mass., Tuesday, in a rare event that piqued the interest of scientists. Unfortunately, the shark washed back to sea despite the ...

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 ...

In 2015, a sand tiger shark at Aqua World became the first of its species to become pregnant in captivity in Japan. The pregnancy, however, ended in a stillbirth. The newborn is currently off ...