Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-strange-case-of-the-cyclops-sheep-tien-nguyen In the 1950s, a group of ranchers in Idaho were baffled when their sheep gave birth to lambs with only one eye. Mystified by these cyclops sheep, they called in scientists from the U.S. Department of Agriculture to investigate. What happened? Tien Nguyen describes how, decades later, one team of biologists stumbled upon the answer. Lesson by Tien Nguyen, directed by Anton Bogaty. Thank you so much to our patrons for your support! Without you this video would not be possible. Sarabeth Knobel, Quentin Le Menez, Mattia Veltri, Sammie Goh, Fabian Amels, Ellen Spertus, Sandra Tersluisen, Marcel Trompeter-Petrovic, PnDAA, Jose Fernandez-Calvo, Jack Ta, Steph, Hugo Legorreta, Zhexi Shan, Gustavo Mendoza, Bárbara Nazaré, Josh Engel, Natalia Rico, Andrea Feliz, Olivier Brunel.