A pot belly pig can make a wonderful pet. They are intelligent, sociable, bond well with the family and are easy to train. The defining characteristics of the pot belly pig are a swayed back, short legs, ears that stand erect and a straight tail. Of course the most noticeable feature of the pot belly pig, and the reason for the name, is the pronounced pot belly. Not all pot bellied pigs are small or miniature. Some can reach 200 pounds upon maturity.