When observing killer whales, there are some typical things one may expect to see. You may see them communicating with one ...

Residents and visitors in British Columbia have been experiencing a rare sight, thanks to a pod of killer whales engaging in ...

Orcas have spent the past few years rewriting their public image from charismatic performers to unpredictable disruptors, ...

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 ...

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 ...

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 ...