Cavia porcellus, commonly known as the guinea pig, is a small rodent native to the Andes mountains in South America. They are social animals that typically live in groups and are known for their gentle and friendly nature. Guinea pigs have a stout body, short legs, and no tail, making them distinct among rodents. These animals are herbivores, primarily feeding on hay, fresh vegetables, and specially formulated pellets. Guinea pigs require a diet rich in vitamin C, as they cannot produce it themselves. They are popular pets due to their easy care and affectionate behavior, making them suitable for families and individuals alike.