Scalloped hammerhead shark, Sphyrna lewini, swimming above a reef. Cocos Island, Pacific Ocean, Costa Rica. Greg Lecoeur, ...

Bertie heads to Mexico to track the dangerous migration of one of the ocean’s most iconic predators: the hammerhead shark in ...

With a bulging head that looks like it swallowed a gavel, there's no mistaking the animal: It’s a hammerhead shark. Across the globe, there are more than nine hammerhead species, many of which are ...

One of the ocean’s most iconic predators appeared out of the blue. Mark Vins captures an unforgettable encounter with a giant ...

Gregory discusses visiting the Baja Peninsula, the shark fishing trade, and his new Act 4 Wildlife initiative.

Hammerhead Sharks Up Close With Bertie Gregory, the National Geographic on the ocean’s most intriguing creatures, airs ...

"Hammerhead Sharks Up Close With Bertie Gregory" kicks off Sharkfest with a look at the rare species.

National Geographic's month-long tribute to sharks begins on July 5 Kelli Bender is the Pets Editor at PEOPLE. She has been working at PEOPLE since 2013, covering pets, animal rescue and wildlife.

Many sharks hunt small, plentiful prey. Great hammerheads take a different approach: Eat other sharks. It’s an energy-intensive strategy, but one that pays off for this critically endangered species, ...

For its 14th year, National Geographic's "Sharkfest" returns to celebrate one of the ocean's most fascinating predators. The two-week event combines entertainment with education, with expert-led ...