The National Oceanic and Atmospheric Administration felt confident enough to trumpet the discovery of the long rumoured killer whale on Thursday. Their heads are a bit more rounded and less sleek than normal killer whales and their dorsal fins are narrower and pointed. Pitman said they are so different they probably cannot breed with other killer whales and are likely a new species. In the Southern Hemisphere, killer whales are considered all one species, classified in types A through C. This one is called type D or subantarctic killer whales. "The type D killer whale lives in the most inhospitable waters on the planet.

Source: Otago Daily Times March 07, 2019 21:00 UTC