Angier, Natalie. “Pigs Prove to Be Smart, If Not Vain.” New York Times 10 Nov. 2009: D1.The New York Times. 9 Nov. 2009. Web. 28 Mar. 2014.

Brix, Lise. “Humans Have Added New Bones to the Pig.” Sciencenordic.com. N.p., 16 Nov. 2012. Web. 15 Apr. 2014.

Butler, Chris. “The Flow of History.” FC5: The Domestication of Animals and Its Effects -. N.p., 2007. Web. 06 Apr. 2014.

Cloake, Felicity. “Backlash against the Not-So Micro Pigs.” Daily Mail (London). Solo Syndication, 24 Sept. 2010. Web. 15 Apr. 2014.

Darwin, Charles, Duncan M. Porter, and Peter W. Graham. The Portable Darwin. New York: Penguin Books, 1993. Print.

Diamond, Jared. “Guns, Germs, & Steel — (Episode 1 – Out of Eden).” YouTube. YouTube, 25 Sept.2013. Web. 06 Apr. 2014.

Donkin, R. A. “The Peccary: With Observations on the Introduction of Pigs to the New World.” JSTOR 5th ser. 75 (1985): 1-152. Transactions of the American Philosophical Society. American Philosophical Society. Web. 21 Apr. 2014.

Fox, David L., and Phil Myers. “Suidae Hogs and Pigs.” Animal Diversity Web. University of Michigan Museum of Zoology, n.d. Web. 27 Mar. 2014.

Gade, Daniel W. “The Cambridge World History of Food – Hogs.” The Cambridge World History of Food – Hogs. Ed. Kenneth F. Kiple and Kriemhild C. Ornelas. N.p., n.d. Web. 04 Apr. 2014.

Giuffra, E., and J. M. Kijas. “The Origin of the Domestic Pig: Independent Domestication and Subsequent Introgression.” Genetics. Genetic Society of America, 1 Apr. 2000. Web. 27 Mar. 2014.

Gonyou, H. W. “Social Behaviour of Pigs.” Social Behavior in Farm Animals. By J. L. Keeling. NewYork: CABI Pub., 2001. 147-68. Print.

Larson, Greger. Dobney, Keith. Albarella, Umberto.  Fang, Meiying. Matisoo-Smith, Elizabeth. Robins, Judith.  Lowden, Stewart. Finlayson, Heather. Brand, Tina. Willerslev, Eske. Rowley-Conwy, Peter. Andersson, Leaf. and Cooper, Alan. Worldwide Phylogeography of Wild Boar Reveals Multiple Centers of Pig Domestication. Science 11 March 2005: 307 (5715), 1618-1621. [DOI:10.1126/science.1106927]

Hutchins, Michael, Arthur A. Evans, Jerome A. Jackson, Devra G. Kleiman, James B. Murphy, andDennis A. Thoney, eds. “Pigs (Suidae).” Gzrimeck’s Animal Life Encyclopedia. Mammals IV, 2nd Edition ed. 2004. Gale Virtual Reference Library. Web. 18 Feb. 2014.

Larson, G., R. Liu, X. Zhao, J. Yuan, D. Fuller, L. Barton, K. Dobney, Q. Fan, Z. Gu, X.-H. Liu, Y. Luo, P. Lv, L. Andersson, and N. Li. “From the Cover: Patterns of East Asian Pig Domestication, Migration, and Turnover Revealed by Modern and Ancient DNA.” Proceedings of the National Academy of Sciences 107.17 (2010): 7686-691. Academic Search Complete. Web. 15 Apr. 2014.

Manach, Julia. “VERRACOS – CELTIC ART IN PENINSULA IBERICA.”Page III. Ancient Sites, 14 Jan. 2004. Web. 30 Apr. 2014.

Mathews, K., Jones, K., & Johnson, R. (2013). Productivity gains increase U.S. commercial pork production. Amber Waves, , 17-19. Retrieved from http://ezproxy.lib.vt.edu:8080/login?url=http://search.proquest.com/docview/1440328853?accountid=14826

Mizelle, Brett. Pig. London: Reaktion, 2011. Print.

“Pigs as Stand-Ins for Microbiome Studies.” Science 336.6086 (2012): 1250. Web.

“Pork Production.” Ag 101. Environmental Protection Agency, n.d. Web. 28 Apr. 2014.

Wood, Ann. “Pet Pig Makes a Splash around Wellfleet.” Wicked Local Cape Cod. N.p., 24 Mar. 2014. Web. 15 Apr. 2014.

Terrill, Ceiridwen. Part Wild: One Woman’s Journey with a Creature Caught between the Worlds of Wolves and Dogs. New York, NY: Scribner, 2011. Print.

Thaler, Andrew D. “The Trouble with Teacup Pigs.” Southern Fried Science. N.p., 14 Oct. 2012. Web. 03 May 2014.

Tree of Life Web Project. 2006. Suidae. hogs and pigs. Version 23 February 2006 (temporary).http://tolweb.org/Suidae/30339/2006.02.23 in The Tree of Life Web Project,http://tolweb.org/

Zeder, Melinda A. Documenting Domestication: New Genetic and Archaeological Paradigms. Berkeley, CA: U of California, 2006. Print.

Zeder, Melinda. “Pathways to Animal Domestication.” Biodiversity in Agriculture: Domestication, Evolution, and Sustainability. By Jack R. Harlan and Paul L. Gepts. Cambridge: Cambridge UP, 2012. N. pag. Print.