In "Dolphins Up Close with Bertie Gregory," the National Geographic explorer looks to the camera and says, "Any day you see a dolphin is a good day." And that was Gregory's main objective for his ...

Adventure! These alluring Atlantic Ocean isles offer extraordinary sightings of marine life. Watch National Geographic’s ‘Dolphins Up Close With Bertie Gregory’ show. Plus, vacation ideas for you.

With the feeding frenzy in full swing, the dark blue sea water is a flurry of movement. Dozens of dolphins dart up from below while seabirds dive underwater, all trying to snatch a snack from a large, ...

Irrawaddy dolphins, known for their cooperative fishing with humans, are critically endangered due to gill nets, pollution, and dams. These intelligent marine mammals face extinction across Southeast ...