Where do they come from?
Guinea pigs live in the wild in South America, living in rocky areas, grasslands and forest edges. They live in groups of about 10 adults, and live in burrows, either dug by themselves or by other animals. They are most active at night, when they come out and forage on a wide variety of plant materials.
The guinea pig was first domesticated as long ago as 2000BC in the Andes in South America, in the region now known as Peru and Bolivia. They were originally kept for food, but some may have become family pets for the children at that time. Guinea pigs were not often bought; rather they were given as presents, especially as wedding gifts, or as gifts to special guests or children! They would be kept in the household kitchen, where they would be allowed to run around freely.