A pig has a snout for a nose, small eyes, and a small tail, which may be curly, kinked, or straight. It has a thick body and short legs. There are four toes on each foot, with the two large middle toes used for walking.

http://www.fiery-foods.com/dave2/images/porkers/tamworth%20pig_small.jpg

http://wintermute.sr.unh.edu/photo/color/miscellany/images/hey-pig-piggy-pig-pig-pig.jpg

http://www.mcps.k12.md.us/clipart/gif/pig2.gif