The two proposed species may look indistinguishable to the untrained eye, but there are ... color of this species." All killer whales are currently classified as Orcinus orca, a macabre nod ...

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 ...

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 ...