This apex predator roams the world's oceans and has developed an appetite for the livers of the largest and scariest fish in ...

For most of the 20th century, scientists on the Pacific Coast of North America held two basic assumptions about the killer whale (Orcinus orca): first, it was a voracious predator inclined to attack ...

Now, they say their genetic testing has proven that suspicion was justified. One of the world’s most powerful predators, the orca (Orcinus orca), also known as a killer whale, is in fact the largest ...

Orcinus is derived from the Latin word orcus, which means “of the netherworld.” Originally known as “whale killer,” the orca's common name stems from early whalers' records of the species' predatory ...

Northwest Pacific orcas have started wearing salmon hats again, bringing back a bizarre trend first described in the 1980s, researchers say. Last month, scientists and whale watchers spotted orcas ...

This story appears in the July 2015 issue of National Geographic magazine. There are no orcas to speak of in Western literature. Although they look like mythic creatures, with their sleek bodies ...

Katie Meddins explores the catastrophic impact of orca predation on South Africa's great white shark population, detailing the ecological consequences and the broader implications for marine ...

Now, they say their genetic testing has proven that suspicion was justified. One of the world’s most powerful predators, the orca (Orcinus orca), also known as a killer whale, is in fact the largest ...