.NATURE IS Attending To Americans to all type of eyeglasses. On April 8th thousands observed a total solar energy eclipse. Lots of will definitely be actually less mesmerized when, in the coming times, mountains of cicadas appear in the nation's Midwest and south-east. The throng will certainly be uncommonly sizable considering that two types of the bug-- Family XIII and Brood XIX-- are actually surfacing at the same time. The final opportunity they appeared at the same time was in 1803, when Thomas Jefferson was president. Why perform the cicadas have such an unusual life cycle?