A surprising new study now shows that orcas have a softer, possibly even romantic, side as they are caught kissing on film ...

In what is being described as social and grooming behavior, Southern Resident orcas are using kelp to massage one another.

When behavioural ecologist Michael Weiss spotted a Salish Sea orca holding a green object in its mouth, he chalked it up to ...

Rubbing against algae to slough off dead skin has been observed in other cetaceans, but never before with what can truly be ...

The Oregon Department of Fish and Wildlife is developing a plan to protect Southern Resident orcas, which were added to the ...

To Donald Trump shooting across my bow, “Stopping Radical Environmentalism to generate power for the Columbia River Basin” (Presidential Memorandum June 12).

A new study, released Monday, is investigating rare occurrences of orcas offering humans food offerings and what that ...

Dubbed "allokelping," it might be a unique cultural phenomenon that's as endangered as the orca population itself ...

The team ran experiments offering people who returned bottles the option of getting a typical ten-cent payout—or the small ...

I thank the many Oregon and Washington legislators who have issued statements opposing the ending of the agreement and who ...

Scientists have spotted a subset of killer whales using seaweed to scratch each other’s backs, marking the first known ...

Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the ...