During a mid-January blue-sky day, a pod of orcas put on a show for dozens of onlookers in West Seattle on Friday.

We could all use a buddy to help us track down dinner from time to time. Sarah Fortune, a marine ecologist at Dalhousie University in Nova Scotia, and her colleagues used drones and camera-equipped ...

Orcas have long been revered for their intelligence, adaptability, and group-hunting strategies. But one scientific review spanning two decades has revealed a little-known, yet intriguing behavior.

New research on the eastern North Pacific has revealed that the mammal-eating killer whales off the West Coast are not a single roaming population but two socially distinct communities that rarely, if ...

Inner coast transient killer whale hunting close to a Steller sea lion haulout off the outer coast of Washington. New research has confirmed that West Coast transient killer whales who live between ...

A rare and dramatic encounter with transient killer whales has been documented off the coast of Victoria, offering a glimpse ...

Killer whales have been seen detaching lengths of seaweed and using them to massage each other – the first evidence of tool-making by marine mammals. The whales bite off the end of a kelp stalk, ...

Esther Jacobs smelled murder on the water. As the pungent odor of shark liver filled the air and an oily sheen spread across the surface, Jacobs had come upon an aquatic crime scene - and two ...

Neuroscientist Lori Marino and a team of researchers explored the brain of a dead killer whale with an MRI and found an astounding potential for intelligence. Killer whales, or orcas, have the ...

The Russian government takes action weeks after video footage showed the animals languishing in freezing waters.