Resources:
- http://a-z-animals.com/animals/wild-boar/
- http://www.sciencedaily.com/releases/2005/03/050326004537.htm
- http://www.fieldandstream.com/photos/gallery/kentucky/2007/05/anatomy-hog
- http://www.texasboars.com/anatomy.html
- http://chemse.oxfordjournals.org/content/24/3/301.full
- http://www.bbc.co.uk/nature/life/Wild_boar
- http://a-z-animals.com/animals/wild-boar/
- http://www.sciencedaily.com/releases/2005/03/050326004537.htm
- http://www.fieldandstream.com/photos/gallery/kentucky/2007/05/anatomy-hog
- http://www.texasboars.com/anatomy.html
- http://chemse.oxfordjournals.org/content/24/3/301.full
- http://www.bbc.co.uk/nature/life/Wild_boar