More than 150 years ago, a San Francisco whaler noticed something about killer whales that scientists may be about to formally recognize — at least in name. Charles Melville Scammon submitted a ...

Caspian Oliai, MD, MS, medical director of the UCLA Bone Marrow Transplantation Stem Cell Processing Center, discusses ...

All killer whales are currently categorized as a single species, but a new study may change that. Researchers suggest in the journal Royal Society Open Science that two populations of killer ...

For the first time, a group of killer whales has been documented preying upon a prickly shark, a rare deep-sea dweller, ...

A rare sighting of critically endangered southern resident killer whales off the Oregon coast offers a glimpse of a ...

Originally known as “whale killer,” the orca's common name stems from early whalers' records of the species' predatory behavior. DESCRIPTION: Killer whales are perhaps the most striking cetaceans in ...

the all-white killer whale standing out against the other five, who possess the species' typical black-and-white coloring. In another clip of the encounter, MBWW shared more information about ...

The Pacific Whale Watch Association (PWWA) announced that a new Bigg’s orca calf has been spotted in the Salish Sea.

Now, a new species has been added to their menu. For the first time, a group of killer whales has been documented preying upon a prickly shark, a rare deep-sea dweller, according to a study ...