Pitman told National Geographic these whales have a more rounded head, a very small white eye patch and a pointier and narrower dorsal fin. They are also shorter in length than other orcas.
The AP reported that scientists have obtained a blubber and skin tissue sample from one of the whales in order to determine if the Type D killer whale is a distinct species.
“We are very excited about the genetic analyses to come,” Pitman said. “Type D killer whales could be the largest undescribed animal left on the planet and a clear indication of how little we know about life in our oceans.”