Guinea pigs, also known as porpoises, Dutch rats, Dutch pigs, guinea pigs and guinea pigs, are classified as guinea pigs in zoology and belong to the family Petunia. Although the names are Dutch pigs and guinea pigs, this animal is neither a pig nor from the Netherlands or Guinea. Their ancestors came from the Andes in South America. According to biochemical and hybridization analysis, the guinea pig is a domesticated offspring of a kind of guinea pig, such as African guinea pig, African guinea pig or African guinea pig. Therefore, this animal no longer exists in nature. Guinea pigs play an important role in the folk culture of indigenous people in South America. They are not only the source of food, but also the source of medicine and the sacrifice of religious ceremonies. With the progress of society, guinea pigs are no longer just sacrifices or food, and more and more people regard this naive little animal as a pet!