The pot-bellied pig is a breed of domestic pig originating in Vietnam. Considerably smaller than standard American or European farm pigs, most adult pot-bellied pigs are about the size of a medium- or large-breed dog, though their bodies are denser at a weight of around 200 lb (90 kg). Pot-bellied pigs can be easily discerned from other pig breeds by their size, their short snout, and their large pot belly. Most are predominantly black or grey in color.
Because pot-bellied pigs are in the same species as ordinary farmyard hogs and wild boars, they are capable of interbreeding. Male pigs, called boars, and female pigs, called sows, become fertile at a young age, long before they are completely physically mature. Pot-bellied pigs are considered fully grown at 2-3 years of age.