Off the Pacific coast of Canada, scientists have captured something that challenges long‑held assumptions about life in the ...

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

Killer wh ales appear to be inviting humans for lunch, a new study suggests. The research investigated unusual occurrences of orcas in four oceans attempting to share prey with people. More than 30 ...

Killer whales are among the ocean’s most powerful predators. They can prey on stingrays, seals, porpoises, and even massive baleen whales. They are also known for disrupting great white sharks and ...

(CNN) — A pod of Pacific white-sided dolphins off the coast of British Columbia have been observed cooperating with orcas, a traditional enemy that’s better known for taking out great white sharks ...

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 ...

In the fall of 2018, a lone killer whale approached a boat in the Pacific Ocean. It didn’t attack the vessel — as has happened numerous times in recent years. Instead, it offered up an unexpected gift ...