Posted by Ric Brewer, Communications The world's third largest species of rodent will soon be making its appearance at Woodland Park Zoo. Can you guess what it is? Well, if you've looked below at the photos, you already know: the porcupine! Two young porcupines will soon join the other animals in our award-winning Northern Trail exhibit. The pair, Molly and Oliver, is approximately 3 months old and came from Weickert's Wildlife in Bent, Minnesota. Molly is the larger and darker of the two, and even though Oliver likes to try and push her around, Molly steadfastly stands her ground. They also have decidedly gourmet tastes, preferring willow branches over apple and delectable treats such as peanut butter. Porcupines (the term is derived from the Middle French porc espin meaning "quilled pig") are in the order Rodentia which also contains mice, rats, the South American capybara -- the largest rodent species -- mole-rats, and chinchillas, among others. Beaver, by the