Biologists discovered killer whales and dolphins working together to hunt salmon, a behavior never before documented in this population.

Sarah Fortune, an assistant professor in oceanography at Halifax’s Dalhousie University, said it would appear the massive ...

New footage shows orcas and dolphins coordinating hunts, hinting at interspecies teamwork to track and catch salmon off ...

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.

Videos show a rare instance of a pod of killer whales attacking and attempting to devour two adult gray whales in Monterey Bay, California.

The species Orcinus orca, generally known as orcas or killer whales, is made up of many genetically distinct populations ...

Drone pilot Slater Moore captured a rare sight on camera: two adult female killer whales and two calves tearing into a still-wriggling shark in California's Monterey Bay. It's rare to catch this ...

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 ...