Experts say the whales seem to learn to play with boats from a young age. "Believe me: if they wanted to sink the boats, they ...

Orcas are preying on and ramming boat rudders, scaring people—scientists have some mind-blowing suggestions Orcas are ...

The post read in part: Until recently, the motive was a mystery, but new research has traced the behavior back more than a decade to a single traumatic event. Somewhere off the coast of Morocco, a ...

The orcas are at it again. Two sailors were rescued from a stricken vessel off Spain's northern coast following an attack by a pod of killer whales.

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 ...

An orca started a fad in the summer of 1987 when it killed a salmon and returned to the surface with the dead fish draped on top of its head. For a few pods of killer whales in the Puget Sound area of ...

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 ...