This summer, we’ll look at three shark species with notorious reputations: tiger sharks, great whites and oceanic whitetips. We’ll meet scientists who are shedding new light on these enigmatic ...

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 ...

No one knows exactly why this reflex developed in sharks, but researchers suppose it has something to do with shark ...