Ancient Aliens: Rh-Negative (Season 11) | History

There are some who believe that people with Rh-negative blood may have evolved from an extraterrestrial species in this clip from Season 11 s episode, "The Prototypes". #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: http://histv.co/SubscribeHistoryYT Find out more about the show and watch full episodes on our site: http://po.st/AncientAliens Check out exclusive HISTORY content: History Newsletter: http://po.st/HistoryNewsletter Website - http://po.st/HistoryWeb Facebook - http://po.st/HistoryFacebook Twitter - http://po.st/HistoryTwitter "Ancient Aliens" explores the controversial theory that extraterrestrials have visited Earth for millions of years. HISTORY®, now reaching more than 98 million homes, is the leading destination for award-winning original series and specials that connect viewers with history in an informative, immersive, and entertaining manner across all platforms. The network s all-original programming slate features a roster of hit series, epic miniseries, and scripted event programming. Visit us at http://www.HISTORY.com for more info.