Recently, people have spotted killer whales engaging in some unique behavior. They are rubbing their bellies along the rocks ...

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

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

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

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

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 ...

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

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.

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 ...