For the first time, a rare variety of orca known as Type D has been filmed underwater. ➡ Subscribe: bit.ly/NatGeoWILDSubscribe About Nat Geo Wild: Welcome to a place so wild, anything can happen. Nat Geo Wild is the network all about animals from National Geographic, where every story is an adventure and your imagination is allowed to run wild. Get More Nat Geo Wild: Official Site: bit.ly/NatGeoWILD Facebook: bit.ly/NGWFacebook Twitter: bit.ly/NGWTwitter Instagram: bit.ly/NGWInstagram Tour vessel passengers returning to South America from an Antarctic voyage last December got a surprise. A pod of unusual orcas, or killer whales, surfaced. Scientists on board identified them as Type D, or Subantarctic orcas distinguished from other types by their bulbous heads and very small white eye patches. A crew used the opportunity to go out in a Zodiac for a closer look. The rarest of four orca varieties found in the Southern Hemisphere, few have ever been seen. They favor a zone in the ocean given to rough weather, and far from coasts, making them especially hard to find. Only recently identified as genetically distinct, Type D may constitute a subspecies—or even their own species. READ: Exclusive: Mysterious Orcas Filmed Underwater for First Time news.nationalgeographic.com/2018/03/animals-orcas-killer-whales-antarctica/ The Rare Type D Orca Filmed Underwater For The First Time | Nat Geo Wild youtu.be/JFvrIdyXSZk Nat Geo Wild www.youtube.com/user/NatGeoWild