Chacoan mara the capybara, and guinea pigs. Chacoan maras are closely related to the other member of the genus "Dolichotis", the Patagonian mara. Maras are the fourth largest rodent in the world after the capybaras, beavers and porcupines . Though the mara may look like a rabbit, the rabbit is not actually a rodent and therefore not as closely related to the mara as one might expect. Chacoan mara The Chacoan mara, Dolichotis salinicola, is a relatively large South American rodent of the cavy family. They are a close relative of the better known Patagonian mara. The Chacoan mara lives in the
Guinea pig Galibi tribes once native to French Guiana. "Cabiai" may be an adaptation of the Portuguese "çavia" (now "savia"), which is itself derived from the Tupi word "saujá", meaning rat. Guinea pigs are called "quwi" or "jaca" in Quechua and "cuy" or "cuyo" (plural "cuyes, cuyos") in the Spanish of Ecuador, Peru, and Bolivia. Ironically, breeders tend to use the more formal "cavy" to describe the animal, while in scientific and laboratory contexts, it is far more commonly referred to by the more colloquial "guinea pig". How the animals came to be called "pigs" is not clear. They are built somewhat