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In 17 years of underground life in the United States, animals will break through the earth and come out: there are more than a million animals, which will make a huge noise

via:驱动之家     time:2020/5/23 14:12:28     readed:82

According to scientists at Virginia Tech, there will be a surge of 1.5 million cicadas per acre in parts of Virginia, North Carolina and West Virginia this year. People living in these areas will see a unique natural phenomenon that has never occurred since 2004.

Depending on the species, some cicadas appear every year, and some appear periodically (every 13 or 17 years). These special periodic cicadas belong to a species called brood IX.

Scientists at Virginia Tech said in a statement:

The sound of cicadas is probably the biggest annoyance. Scientists at Virginia Tech compare this sound to


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