.CHARACTER IS Curing Americans to all sort of eyeglasses. On April 8th thousands experienced an overall photovoltaic eclipse. Lots of will be actually much less mesmerized when, in the coming days, mountains of cicadas seem in the country's Midwest as well as south-east. The throng will certainly be extraordinarily large because two kinds of the pest-- Brood XIII and Brood XIX-- are arising all at once. The final time they seemed all at once was in 1803, when Thomas Jefferson was actually president. Why carry out the cicadas possess such an unique life cycle?