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 ...

There are around 40 species of dolphins alive today. They are found all over the world and live in both freshwater and marine habitats. However, although many species are thriving with populations in ...

Common dolphins are among the ocean's most abundant mammals, but they are living shorter lives in the North Atlantic, according to a new study published in Conservation Letters. Subscribe to our ...