A pet, or companion animal, is an animal kept primarily for a person's company or entertainment rather than as a working animal, livestock, or a laboratory animal.Two of the most popular pets are dogs and cats. Other animals commonly kept include rabbits, hamsters, guinea pigs, birds, turtles. Some uncommon pets include tarantulas, iguanas, chinchillas and even pigs and chickens! Pets provide their owners, or guardians, both physical and emotional benefits. Additionally, Pets can give companionship to people who are living alone. Most pets can either bought from pet stores or adopted from a shelter.