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.

We already knew that bottlenose dolphins can follow "recipes" in preparing mollusks, help other species in distress, and possibly do math. So it may come as no surprise that the marine mammals also ...

National Geographic photographer Josh Cogan captures the quiet power of Hawaii’s ocean life, revealing how resilience shows ...