.NATURE IS Caring For Americans to all kinds of spectacles. On April 8th thousands experienced a total solar energy eclipse. Several will definitely be actually less knocked out when, in the coming days, mountains of cicadas show up in the country's Midwest and south-east. The throng will definitely be extraordinarily sizable due to the fact that pair of forms of the bug-- Brood XIII and Brood XIX-- are actually surfacing at the same time. The final time they appeared simultaneously resided in 1803, when Thomas Jefferson was actually president. Why carry out the cicadas have such an unique life process?