Why do cicadas possess such a strange life process?

.NATURE IS ACTUALLY Caring For Americans to all kinds of eyeglasses. On April 8th millions watched a complete solar energy eclipse. A lot of will be much less mesmerized when, in the coming times, trillions of cicadas seem in the country’s Midwest as well as south-east.

The flock will be actually extraordinarily huge due to the fact that pair of types of the insect– Brood XIII as well as Brood XIX– are emerging concurrently. The last time they seemed at the same time remained in 1803, when Thomas Jefferson was president. Why perform the cicadas have such an uncommon life process?