"There are illegal immigrants on the loose in the Midwest. Originally hailing from Asia, they're about 3 ft. (90 cm) long and weigh up to 100 lb. (45 kg), and are known to resist capture. Once they establish residency, they can eat you out of house and home. They're called Asian carp, and they emigrated to the lower reaches of the Mississippi River in the 1970s. Now they're knocking on the door of the Great Lakes, threatening to destroy ..." (Quoted from article)