Get some earplugs; the cicadas are coming

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Get Some Earplugs; The Cicadas Are Coming

It's that time again. Soon they will be upon us. Cicadas — 17-year cicadas, to be exact.

Parts of the U.S. can expect to see, and hear, these insects sometime next month when they rise from the ground to mate.

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And that's all that they're here to do. They've spent the rest of their life underground -- all 17 years of it.

The adults, the ones that make all the noise, only live above ground for about six weeks. But in some places, there could be as many as 1.5 million cicadas per acre.

Males use that sound to look for females so they can mate in that brief time. They can reach 90+ decibels in some instances. That's about the same as a lawn mower.

See photos of cicadas:

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Cicadas emerging
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Get some earplugs; the cicadas are coming
A periodical cicada lands on an Iris leaf in a garden in Lawrence, Kan., Friday, May 29, 2015. Brood IV cicadas, the Kansan brood, are emerging in Texas, Oklahoma, Missouri, Kansas, Nebraska, and Iowa this spring. These periodical cicadas have a 17-year life cycle. The last time they emerged was 1998. (AP Photo/Orlin Wagner)
A periodical cicada lands on a Daisy in a garden in Lawrence, Kan., Friday, May 29, 2015. Brood IV cicadas, the Kansan brood, are emerging in Texas, Oklahoma, Missouri, Kansas, Nebraska, and Iowa this spring. These periodical cicadas have a 17-year life cycle. The last time they emerged was 1998. (AP Photo/Orlin Wagner)
A periodical cicada lands on an Iris leaf in a garden in Lawrence, Kan., Friday, May 29, 2015. Cicadas last as long as it takes for them to mate and run our of energy which translates to about four weeks of singing. These periodical cicadas have a 17-year life cycle. The last time they emerged was 1998. (AP Photo/Orlin Wagner)
Picture shows a cicada or cigale on a tree on August 4, 2013 in Saint-Paul-de-Vence, southeastern France. AFP PHOTO / VALERY HACHE (Photo credit should read VALERY HACHE/AFP/Getty Images)
A cicada, a symbol of France's south-eastern area of Provence, is pictured on a tree on July 28, 2013 in Marseille. AFP PHOTO / BORIS HORVAT (Photo credit should read BORIS HORVAT/AFP/Getty Images)
A 13-year cicada peers over a ledge in Chapel Hill, N.C., Wednesday, May 11, 2011. Portions of the southern states are currently experiencing the emergence of the periodic cicadas, which tunnel their way to the surface to shed their skin and mate after 13 years underground. (AP Photo/Gerry Broome)
A cicada pokes its head out of a shrub, Wednesday, June 9, 2004, in Newport, Pa. Cicada courtship is just now reaching its peak in central Pennsylvania after a 17-year wait. (AP Photo/Carolyn Kaster)
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So if you live in Ohio, West Virginia and other neighboring states, now might be the time to invest in some ear plugs.

When it's all said and done, the females will lay eggs in a tree. After the eggs hatch, the newborn cicadas -- called nymphs -- will bury themselves in the ground and chill for another 17 years.

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