The pigs we breed stem from basically a single species that already had the properties of very fast reproduction and very flexible diet. They were already like

The pigs we breed stem from basically a single species that already had the properties of very fast reproduction and very flexible diet. They were already like that, which is why we breed them. Other species have been tried without success. During the middle ages, our domesticated pigs were basically feral pigs that lived on farms and in towns, even in cities, as a bio garbage disposal. There are a lot of fun facts you can dig up there. The these pigs in America are imported, yes but they became wild again very fast and are basically the same species as before domestication.