Viewers like you help make PBS (Thank you ?) . Support your local PBS Member Station here: https://to.pbs.org/PBSDSDonate I’m thankful for science. And also pie. SUBSCRIBE! http://bit.ly/iotbs_sub Tweet this video ⇒ http://bit.ly/OKTBStgvng2 Share on FB ⇒ http://bit.ly/OKTBStgvngFB ↓ More info and sources below ↓ Want to wear your love for science? We’ve got merch: http://dftba.com/besmart References/Learn More: How turkeys got so big: https://www.wired.com/2008/11/turkeytech/ Benjamin Franklin’s 1784 letter to Sarah Bache about turkeys: http://franklinpapers.org/franklin/framedVolumes.jsp?vol=41&page=281 Ames, Mercedes, and David M. Spooner. "DNA from herbarium specimens settles a controversy about origins of the European potato." American Journal of Botany 95.2 (2008): 252-257. Doebley, John. "The genetics of maize evolution." Annu. Rev. Genet. 38 (2004): 37-59. Grun, Paul. "The evolution of cultivated potatoes." Economic Botany 44.3 (1990): 39-55. McWilliams, James. The