You probably know that pigs like to eat. If it’s a choice between food and any other thing, they will pick food. Did you know that the only animals smarter than pigs are apes and dolphins? Pigs communicate to one another with different oinks, grunts, and squeals which have distinct meanings. You can easily train pigs to walk on a leash, use a litter box, and do tricks. They can be good house pets; however, they consume huge amounts of food and can grow to over 700 pounds.