Kerodon is a genus of rodents characterized by their short, stocky bodies, small ears, and flat, wide heads. This genus is commonly referred to as rock cavies or rock guinea pigs. However, there are several synonyms for the word kerodon, including the Brazilian name mocó, the Spanish name cavies de pared, and the Portuguese name preá. These synonyms are often used interchangeably with kerodon depending on the region and language spoken. Despite the different names, rock cavies are recognized for their unique adaptations to living in rocky habitats, such as their large, durable feet and teeth for climbing and chewing tough vegetation.