An adult cicada rests after shedding its nymphal skin, on the bark of an an oak tree early Wednesday, May 5, 2021, on the University of Maryland campus in College Park, Maryland, US [Carolyn Kaster/AP Photo] Across 15 states in the United States, trillions of bugs will emerge soon after 17 years underground, scientists have said, in a sign that despite climate change, nature continues. Two of those scientists working in the east coast state of Maryland, sift through a shovel load of dirt in a suburban back yard, Michael Raupp and Paula Shrewsbury to find their quarry: a cicada nymph. In maybe a third of a square foot of dirt, the University of Maryland entomologists find at least seven cicadas – a rate just shy of a million per acre. A nearby yard yielded a rate closer to 1.5 million. Within days, a couple of weeks at most, the cicadas of Brood X (the X is the Roman numeral for 10) will emerge after 17 years underground. There are many broods of periodic cicadas that appear on rigid schedules in different years, but this is one of the largest and most noticeable. They will be in 15 states […]

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