Sound of summer is about to turn up: Trillions of cicadas about to emerge

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Nature at its craziest: Trillions of cicadas about to emerge

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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.

And there’s much more afoot. Trillions of the red-eyed black bugs are coming, scientists say.

Within days, a couple 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’ll be in 15 states from Indiana to Georgia to New York; they’re coming out now in mass numbers in Tennessee and North Carolina.

When the entire brood emerges, backyards can look like undulating waves, and the bug chorus is lawnmower loud.

The cicadas will mostly come out at dusk to try to avoid everything that wants to eat them, squiggling out of holes in the ground. They’ll try to climb up trees or anything vertical, including Raupp and Shrewsbury. Once off the ground, they shed their skins and try to survive that vulnerable stage before they become dinner to a host of critters including ants, birds, dogs, cats and Raupp.

It’s one of nature’s weirdest events, featuring sex, a race against death, evolution and what can sound like a bad science fiction movie soundtrack.

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“You’ve got a creature that spends 17 years in a COVID-like existence, isolated underground sucking on plant sap, right? In the 17th year these teenagers are going to come out of the earth by the billions if not trillions. They’re going to try to best everything on the planet that wants to eat them during this critical period of the nighttime when they’re just trying to grow up, they’re just trying to be adults, shed that skin, get their wings, go up into the treetops, escape their predators,” he says.

“Once in the treetops, hey, it’s all going to be about romance. It’s only the males that sing. It’s going to be a big boy band up there as the males try to woo those females, try to convince that special someone that she should be the mother of his nymphs. He’s going to perform, sing songs. If she likes it, she’s going to click her wings. They’re going to have some wild sex in the treetop.

“Then she’s going to move out to the small branches, lay their eggs. Then it’s all going to be over in a matter of weeks. They’re going to tumble down. They’re going to basically fertilize the very plants from which they were spawned. Six weeks later the tiny nymphs are going to tumble 80 feet from the treetops, bounce twice, burrow down into the soil, go back underground for another 17 years.”

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