Common Breeds of Hogs. Swine, Hog, Pig Infographic.
pig ear notches | Universal Swine Ear Notching System
Google Image Result for http://www.geauga4h.org/swine/swine_body_parts_labeled.jpg
Learning to judge 4-H Livestock Judging Programs: How to Judge Swine
Hog Anatomy - Reproductive (Very cool website called the pigsite.com - Everything you could ever imagine that has to do with hogs)
Interesting facts about pigs
pig ear notching | Ear Notch Diagram