Watch all new episodes of Ancient Aliens returning soon, and stay up to date on all of your favorite History Channel shows at history.com/schedule. Ancient Astronaut Theorists believe extraterrestrials are controlling the evolution of humans, in hopes of one day reuniting with our species, in this clip from Season 14, "The Alien Infection." #AncientAliens Subscribe for more from Ancient Aliens and other great HISTORY shows: histv.co/SubscribeHistoryYT Find out more about the show and watch full episodes on our site: histv.co/AncientAliens Check out exclusive HISTORY content: History Newsletter: histv.co/newsletter Website - histv.co/History Facebook - histv.co/Facebook Twitter - histv.co/Twitter HISTORY® 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, premium documentaries, and scripted event programming.