Why carry out cicadas possess such a strange life cycle?

.CHARACTER IS Attending To Americans to all type of eyeglasses. On April 8th millions saw a complete solar energy eclipse. Many will definitely be much less knocked out when, in the coming times, mountains of cicadas show up in the nation’s Midwest as well as south-east.

The throng will definitely be extraordinarily huge given that pair of forms of the bug– Family XIII and also Brood XIX– are surfacing concurrently. The last time they appeared concurrently remained in 1803, when Thomas Jefferson was actually head of state. Why carry out the cicadas possess such an unique life cycle?