Killer whales in aquariums regularly eat ice cubes, even though ice provides no calories or nutrients. It's a curious practice that has generated many questions because wild orcas never encounter ice ...

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.

Fish-eating killer whales in southern Alaska have a diverse, seasonally changing diet featuring salmon and groundfish, according to a recently published study in the journal Ecosphere. The types of ...

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 ...

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 study comparing the nutritional demands of killer whales with the caloric content of their prey has startling implications for the potential impact of these large predators on populations of other ...