.NATURE IS ACTUALLY Attending To Americans to all kinds of eyeglasses. On April 8th thousands observed a total solar eclipse. Several will certainly be less mesmerized when, in the coming times, mountains of cicadas seem in the country's Midwest and also south-east. The flock is going to be actually unusually sizable due to the fact that two kinds of the bug-- Brood XIII and Family XIX-- are actually surfacing all at once. The last time they showed up at the same time resided in 1803, when Thomas Jefferson was president. Why carry out the cicadas have such an unusual life process?