.STRUCTURE IS Caring For Americans to all type of eyeglasses. On April 8th thousands saw a complete solar eclipse. Several will certainly be much less magnetized when, in the coming times, mountains of cicadas seem in the nation's Midwest and also south-east. The flock is going to be actually abnormally huge given that two forms of the bug-- Brood XIII as well as Brood XIX-- are actually developing at the same time. The final time they seemed all at once remained in 1803, when Thomas Jefferson was head of state. Why do the cicadas possess such an uncommon life process?