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

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

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

At a time when Greenland is in the media spotlight because of Donald Trump's words about the strategic enclave, the territory ...

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.

Learn how differences in diet and behavior split orcas off northern Japan into resident and transient groups — and what their ...

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 ...