Here at Pafos Zoo we have a couple of animals that full into the Rodents category, Our lovely but shy Porcupine and our Lazy Patagonian Mara, although there are about 2,277 species of rodents. Rodents are characterised by a single pair of continuously growing incisors in each of the upper and lower jaws which must be kept short by gnawing. Most rodents eat seeds or plants, though some have more varied diets.