Humpback whales (Megaptera novaeangliae) like the ones pictured here with bottlenose dolphins (Tursiops truncatus) in Kona, Hawaii, appear to be more open to interacting with fellow cetaceans.

Do dolphins and whales actually play together, or are the dolphins just harassing the whales? Researchers sought to answer this question by looking through hundreds of photographs and video clips in a ...

You may think that dolphins are super cute sea creatures to view from the shore and boats, but for killer whales, they are food! That makes them a legitimate hunting target. This dolphin found out the ...

Canada’s minister of fisheries says Marineland’s plan to ship 34 marine mammals to aquariums in the U.S. is "solid." Animal ...

A suction camera tag deployed by Dr Olaf Meynecke captures the depths dolphins will sometimes accompany whales to - in this case, even to the sea floor. A new study has investigated hundreds of videos ...

Marineland, a former Canadian theme park, has reportedly threatened to euthanize the animals if they're not soon transferred ...

The ocean is under increasing pressure. Everyday human activities, from shipping to oil and gas exploration to urban ...

Blue whales are not only the largest animal on earth today but the largest known animal ever to have lived on earth. The largest blue whale ever recorded weighed over 199 tons. Even average-sized blue ...

It was a once-in-a-lifetime encounter. A tour group encountered two whales and a pod of dolphins while riding Sea-Doos from Catalina Island to Long Beach. "These whales were either curious or playful.

Orcas and dolphins might hang out together off the coast of British Columbia to hunt for food as a team, new research suggests. University of British Columbia (A.Trites), Dalhousie University (S.