Billions of Brood X cicadas emerging for first time in 17 years: What to know CNET 4 hrs ago Leslie Katz © Provided by CNET Periodical cicadas emerge from underground in the spring of their 13th or 17th year. Fifteen US states, and Washington, DC, are about to see a whole lot of them. Getty Images
Parts of the eastern and southern United States are about to witness a remarkable natural spectacle: billions of cicadas tunneling out from underground for the first time in 17 years to fill outdoor spaces and share their loud collective mating calls.
Periodical cicadas, as they re known, are different than annual cicadas. They spend almost their whole lives a foot or two underground, living on sap from tree roots. Then, in the spring of their 13th or 17th year, mature cicada nymphs burrow out from the ground for a short adult stage, synchronously and in huge numbers. Really huge numbers.
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Billions of Brood X cicadas emerging for first time since 2004: What to know CNET 2 hrs ago Leslie Katz © Provided by CNET Periodical cicadas emerge from underground in the spring of their 13th or 17th year. Fifteen US states, and Washington, DC, are about to see a whole lot of them. Getty Images
Parts of the eastern and southern United States are about to witness a remarkable sight: billions of cicadas tunneling out from underground for the first time in 17 years to swarm outdoor spaces and share their loud collective mating calls.
Periodical cicadas, as they re known, spend almost their whole lives a foot or two underground, living on sap from tree roots. Then, in the spring of their 13th or 17th year, mature cicada nymphs burrow out from the ground for a short adult stage, synchronously and in huge numbers. Really huge numbers.