Pigs are a passive mobs found in the overworld, like the chicken, in almost every biome.
If given a saddle the player can ride the pig, but they will have no control of the pigs direction. When you kill a pig, you can receive raw porkchops. If you kill the pig using fire, then you can receive cooked porkchops instead. Pigs breed like other farm animals, by giving two different pigs wheat.