Orcas are fierce, apex predators of the sea; hence their “killer whale” moniker. They’re also smart, which makes them even more of a threat. One of their preferred prey? Another supposed apex predator ...

Orcas in the Gulf of California off the coast of Mexico have been spotted hunting young great white sharks by flipping them over to incapacitate them before eating their energy-filled liver, new ...

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): ...

The legendary killer whale known as “Old Thom” is back. A group on a tuna fishing expedition off Massachusetts over the weekend spotted the well-known orca — leading to plenty of excitement from the ...

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.

To date, attacks by killer whales (Orcinus orca) upon elephant seals (Mirounga angustirostris) have been conjectured, but never documented. On 28 Dec. 1973, while aboard a 14 ft. skiff from Cape ...