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

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

New research reveals that orcas around the island of Hokkaido can be split into two distinct forms, offering conservationists ...

Despite their reputation as 'killer' whales, orcas are known to lend a helping fin by sharing their food with humans. A recent study recorded and analyzed 34 instances of prey-sharing by orcas ...

Across the world’s oceans, killer whales share the same striking black‑and‑white look yet live radically different lives.

Offshore Morin, P. A., R. G. Leduc, et al. (2006). "Genetic analysis of killer whale (Orcinus orca) historical bone and tooth samples to identify western U.S. ecotypes." Marine Mammal Science 22 (4): ...

Orcas (Orcinus orca) might be even more ferocious predators than we give them credit for. Scientists have discovered orcas that have learned to hunt whale sharks (Rhincodon typus), the largest fish in ...

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.

While well documented in the Northern Hemisphere and Antarctica, much less is known about killer whales (Orcinus orca) in Australia. However, orcas are actually sighted year-round in all coastal ...