Pot-Bellied Pig Lifespan: years Origin: Vietnam Fun fact: Though many people unfamiliar with pot-bellied pigs believe they remain a miniature size, adult pot-bellied pigs grow to be the size of a medium to large-sized dog,. Unusual Animals, Unusual Pets, Farm Animals, Cute Animals, Pot Belly Pigs, Keeping Chickens, Pet Pigs, Urban Homesteading, This Little Piggy