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 in film and television. In the TV movie "Shredderman Rules", the main character and the main character's crush both have guinea pigs which play a minor part in the plot. A guinea pig named Rodney, voiced by Chris Rock, was a prominent character in the 1998 film "Dr. Dolittle", and Linny the Guinea pig is a co-star on Nick Jr.'s "Wonder Pets". Guinea pigs were used in some major advertising campaigns in the 1990s and 2000s, notably for Egg Banking plc, Snapple, and Blockbuster Video. The Blockbuster campaign is considered by some guinea pig advocates to have been a factor