Recently, people have spotted killer whales engaging in some unique behavior. They are rubbing their bellies along the rocks ...

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): ...

Across the world’s oceans, killer whales share the same striking black‑and‑white look yet live radically different lives. Some populations hug familiar coastlines generation after generation, while ...

The turquoise waters off the coast of Oman have long been a magnet for those seeking the gentle ballet of dolphins or the ...

The species Orcinus orca, generally known as orcas or killer whales, is made up of many genetically distinct populations called ecotypes. Each ecotype indicates an ecological specialization with its ...

Killer whales or orca (Orcinus orca) have been observed hunting with Pacific white-sided dolphins (Lagenorhynchus obliquidens) in the waters off British Columbia, Canada, and sharing fish scraps with ...

Orcas display a variety of skills, like coordinated hunting and regional ‘dialects.’ They have also revealed several interesting habits, like grooming each other with kelp and offering food to humans.

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 ...

We could all use a buddy to help us track down dinner from time to time. Sarah Fortune, a marine ecologist at Dalhousie University in Nova Scotia, and her colleagues used drones and camera-equipped ...

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 ...