Once thriving, there are now believed to be just 73 Southern Resident killer whales left in Washington state's Puget Sound.

Orcas have been spotted giving each other rubdowns with kelp tools, rubbing pieces of the seaweed between their bodies.

Prior to this instance, the “tongue-nibbling” had only been observed a handful of times in captivity. First seen in captive ...

Researchers have documented orcas dropping prey and other marine life in front of humans, as if offering us food. The orcas' ...

Fashion is fickle and styles come and go — even for orcas, apparently. In 1987, a group of killer whales off the northwestern coast of North America briefly donned salmon “hats,” carrying ...

Northwest Pacific orcas have started wearing salmon hats again, bringing back a bizarre trend first described in the 1980s, researchers say. This is the first time they've donned the bizarre headgear ...

They amuse us by wearing salmon hats, enrage us by sinking our expensive yachts, and now they have been documented sharing their meals with us – why?

First observed in the 1980s, the fad of orcas swimming around with dead salmon on their foreheads off Washington State seemed to have faded—until now. ANIMALS Why these orcas are wearing salmon ...

This edited excerpt from Lynda V. Mapes' new book, "Orca: Shared Waters, Shared Home," explores the decline of salmon numbers in local waters and what that means for orcas, and for sustaining our ...

Fashion is fickle and styles come and go — even for orcas, apparently. In 1987, a group of killer whales off the northwestern coast of North America briefly donned salmon “hats,” carrying ...

Orcas off the coast of Washington State are balancing dead fish on their heads like it's the 1980s, but researchers still aren't sure why they do it. When you purchase through links on our site ...