Guinea Pig (Cavia porcellus)
Guinea pigs are rodents native to South America. Since they lived in herds in the wild, Guinea pigs in captivity require a partner guinea pig to fulfill its herd instincts. Guinea pigs are also very vocal rodents. They often squeak when they are hungry, are scared, or are happy. Since there teeth grow throughout their entire lives, they chew on hay and wood to trim them down to a reasonable size.