The tasmanian devil, just like in the Looney Tunes cartoons, is known for going into a crazy rage when threatened by a predator. It is the largest carnivorous marsupial in the world, reaching 30 inches in length and up to 26 pounds. It is strictly carnivorous, eating snakes, birds, fish and insects. Because it’s a marsupial, when a tasmanian devil is well fed, its tail swells up to store fat. Unfortunately, a horrible illness (a rare contagious cancer) discovered in the mid-1990s has killed thousands of Tasmanian devils.