A "Cavy" is a small, herbivorous rodent belonging to the family Caviidae. The most well-known species is the guinea pig, which is often kept as a pet. Cavies are native to South America and are characterized by their short legs, stocky bodies, and lack of a tail. They are social animals that thrive in groups and communicate through various sounds. Cavies primarily eat grass, hay, and vegetables, requiring a diet rich in vitamin C. They have a unique digestive system that allows them to process fibrous plant material efficiently. In the wild, they live in burrows and are preyed upon by various predators, making their social structure important for survival.