Amongst all the different killer whale populations around the world, there's only a couple that have been observed doing this ...

From sinking boats and feasting on shark livers to dining on whale tongue and tossing porpoises around for fun, orcas are ...

In what maritime officials are carefully describing as “a developing situation with cetacean stakeholders,” a growing ...

Melting Arctic ice has grave implications for the planet. It means rising sea levels and helps lock in higher temperatures — and it also has a dramatic effect on the marine life that has evolved to ...

Behavioral ecologist Michael Weiss was browsing through new drone footage of the orca pods he studies in the Salish Sea when he spotted one of the killer whales carrying something green in its mouth ...

SEATTLE — The mother orca known as J35, or Tahlequah, has been seen carrying her deceased calf for at least 11 days, drawing attention to the critically endangered southern resident killer whales.

New footage shows orcas and dolphins coordinating hunts, hinting at interspecies teamwork to track and catch salmon off ...

The orca on the left carries kelp in its mouth, allowing the whales to "allokelp," or roll the plant between their two bodies. - Center for Whale Research Editor’s Note: Call to Earth is a CNN ...