Scientists off the coast of Belize were studying tiger sharks ... thought they were dealing with a six-gilled shark, and then with some hybrid of a polar shark with another species of Somniosidae.

10-foot tiger shark washed ashore in Jensen Beach Lifeguards could not confirm social media reports of a second shark. Anglers likely caught and released the shark near shore. Shark fishing is ...

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 ...