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 ...

This story appears in the June 2016 issue of National Geographic magazine. This summer, we’ll look at three shark species with notorious reputations: tiger sharks, great whites and oceanic ...

But getting too close may not be such a good idea. According to National Geographic, tiger sharks are "second only to great whites in attacking people." They can grow up to 25 feet in length and ...

Ross Edgley," part of National Geographic's Sharkfest that debuted ... Perhaps eating as much as a tiger shark is where Edgley could gain a lead in the competition. "I thought I was going to ...

These Sharks Once Ruled the Seas. Now They’re Nearly Gone. These Sharks Once Ruled the Seas. Now They’re Nearly Gone. How Tales of Shark Attacks Shaped a U.S. Warship’s Legacy How Tales of ...

Much of what we think we know about great white sharks simply isn’t true. They aren’t merciless hunters, they aren’t always loners, and they may be smarter than experts have thought.

Why are cell phone contaminants showing up in tiger sharks? Why are cell phone contaminants showing up in tiger sharks? Which has a stronger bite: hammerheads or tiger sharks? Which has a stronger ...