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 ...

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

National Geographic’s annual summer event SHARKFEST returns for its fin-credible 14th year, combining jaw-dropping encounters with groundbreaking science and expert-led storytelling that reveal new ...

National Geographic unleashes "Sharkfest," a two-week event of shark-filled fun, beginning July 5 on Disney+ and Hulu. For its 14th year, National Geographic's "Sharkfest" returns to celebrate one of ...

While Bertie Gregory set out to find sharks, he wound up capturing an entirely different predator on film. In Hammerhead Sharks Up Close, a Sharkfest installment, Gregory is tracking sharks in ...