What is known is that they have a relatively stable supply of deep-swimming cartilaginous fish — such as sharks or rays — ...

Delphinidae is the family that includes all oceanic dolphin species. Orcas, also known as killer whales, are the largest dolphins and some of the world’s most powerful predators. All dolphins are ...

If I ventured offshore into the North Pacific, I might also spot several species of great whales, such as sperms, fins, minkes and grays. All told, Alaskan waters contain almost a dozen different ...

possibly several species. Ten different “ecotypes” of killer whales have now been proposed: populations that look different, have different prey preferences, feeding habits and acoustic ...

Two North Atlantic right whales that are typically found off Cape Cod this time of year have been spotted swimming in the ...

Whale songs mean different things to different groups of whales. Depending on the species and specific group, songs can be signifiers of a range of relationships including eligible mates, familial ...

“Using genetic samples, collected from free-swimming whales with a small biopsy dart, we’ve been able to look at two types of humpback DNA; the ‘mitochondrial’ DNA which is inherited from ...