Orcas have spent the past few years rewriting their public image from charismatic performers to unpredictable disruptors, slamming into yachts, wearing dead salmon like hats and even appearing to hand ...

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 ...

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 ...