.TYPE IS TREATING Americans to all sort of spectacles. On April 8th millions watched a complete photovoltaic eclipse. Many will definitely be actually less charmed when, in the coming days, mountains of cicadas appear in the country’s Midwest and south-east.
The throng is going to be uncommonly big considering that 2 forms of the insect– Family XIII as well as Brood XIX– are actually emerging at the same time. The final opportunity they showed up all at once remained in 1803, when Thomas Jefferson was president. Why carry out the cicadas have such an unique life process?