.NATURE IS ACTUALLY Curing Americans to all kinds of eyeglasses. On April 8th millions saw an overall sunlight eclipse. Lots of are going to be actually much less charmed when, in the coming times, mountains of cicadas appear in the country's Midwest and south-east. The swarm will definitely be unusually sizable since 2 kinds of the bug-- Family XIII and also Brood XIX-- are actually emerging all at once. The final time they showed up concurrently resided in 1803, when Thomas Jefferson was head of state. Why do the cicadas possess such an unique life process?