Cavies, commonly known as guinea pigs, are small, social rodents native to the Andes mountains in South America. They belong to the family Caviidae and are known for their friendly nature and variety of coat colors and patterns. Cavies are herbivores, primarily eating hay, fresh vegetables, and specially formulated pellets. These animals are popular as pets due to their gentle temperament and ease of care. Cavies communicate through a range of sounds, including squeaks and purrs, and they thrive in pairs or groups. Their average lifespan is around 4 to 6 years, making them a long-term commitment for pet owners.