A cicada is seen in the early morning next to a discarded nymph exoskeleton on a tree in Shiokaze Park, venue for the Olympic 2020 Beach Volleyball tournament, in Tokyo, Japan, July 28, 2021. REUTERS/John Sibley 

A discarded nymph exoskeleton, left after a cicada has hatched, is seen hanging from a leaf on a tree in Shiokaze Park, venue for the Olympic 2020 Beach Volleyball tournament, in Tokyo, Japan, July 28, 2021. REUTERS/John Sibley 

A cicada sits on the neck of U.S. President Joe Biden as he and first lady Jill Biden depart for England from Joint Base Andrews in Maryland, U.S., June 9, 2021. REUTERS/Kevin Lamarque 

U.S. President Joe Biden swats away a cicada (Not Seen) that was flying around his head prior to boarding Air Force One as he departs on travel to attend the G-7 Summit in England, the first foreign trip of his presidency, from Joint Base Andrews, Maryland, U.S., June 9, 2021. REUTERS/Kevin Lamarque 

U.S. President Joe Biden swats away a cicada (Not Seen) that was flying around his head prior to boarding Air Force One as he departs on travel to attend the G-7 Summit in England, the first foreign trip of his presidency, from Joint Base Andrews, Maryland, U.S., June 9, 2021. REUTERS/Kevin Lamarque 

U.S. President Joe Biden swats away a cicada (Not Seen) that was flying around his head prior to boarding Air Force One as he departs on travel to attend the G-7 Summit in England, the first foreign trip of his presidency, from Joint Base Andrews, Maryland, U.S., June 9, 2021. REUTERS/Kevin Lamarque 

Brood X cicadas, that emerged from the ground 2 weeks ago after 17 years, are seen on a water hose in Jeana and Manooch Saeedi's house, in Louisville, Kentucky, U.S., June 4, 2021. REUTERS/Amira Karaoud 

Brood X cicadas, that emerged from the ground 2 weeks ago after 17 years, lay dying on the swimming pool of Jeana and Manooch Saeedi's son, Aslan, at their backyard, in Louisville, Kentucky, U.S., June 4, 2021. REUTERS/Amira Karaoud 

Brood X cicadas, that emerged from the ground 2 weeks ago after 17 years, lay dying and rotten as others climb a wall at the entrance of Jeana and Manooch Saeedi's house, in Louisville, Kentucky, U.S., June 4, 2021. REUTERS/Amira Karaoud 

Brood X cicadas, that emerged from the ground 2 weeks ago after 17 years, take over the outside walls of Jeana and Manooch Saeedi's house, in Louisville, Kentucky, U.S., June 4, 2021. REUTERS/Amira Karaoud 

Brood X cicadas, that emerged from the ground 2 weeks ago after 17 years, take over monarchs shelter in Cherokee Park in Louisville, Kentucky, U.S., June 4, 2021. REUTERS/Amira Karaoud 

Brood X cicadas, that emerged from the ground 2 weeks ago after 17 years, lay dying and rotten in sidewalks, in Louisville, Kentucky, U.S., June 4, 2021. REUTERS/Amira Karaoud 

Brood X cicadas, that emerged the earth 2 weeks ago after 17 years, are seen on Jeana and Manooch Saeedi's garage wall in Louisville, Kentucky, U.S., June 4, 2021. REUTERS/Amira Karaoud 

Brood X cicadas, that emerged from the ground 2 weeks ago after 17 years, lay dead and rotten in Jeana and Manooch Saeedi's backyard, in Louisville, Kentucky, U.S., June 4, 2021. REUTERS/Amira Karaoud 

Brood X cicadas, that emerged from the ground 2 weeks ago after 17 years, take over monarchs shelter in Cherokee Park in Louisville, Kentucky, U.S., June 4, 2021. REUTERS/Amira Karaoud 

Brood X cicadas, that emerged from the ground 2 weeks ago after 17 years, lay dying and rotten as others climb a wall at the entrance of Jeana and Manooch Saeedi's house, in Louisville, Kentucky, U.S., June 4, 2021. REUTERS/Amira Karaoud 

Brood X cicadas, that emerged from the ground 2 weeks ago after 17 years, lay dead and rotten in Jeana and Manooch Saeedi's backyard, in Louisville, Kentucky, U.S., June 4, 2021. REUTERS/Amira Karaoud 

Brood X cicadas, that emerged from the ground 2 weeks ago after 17 years, lay dead and rotten in Jeana and Manooch Saeedi's sidewalk which they cleaned 4 days ago, in Louisville, Kentucky, U.S., June 4, 2021. REUTERS/Amira Karaoud 

Brood X cicadas, that emerged the earth 2 weeks ago after 17 years, are seen on Jeana and Manooch Saeedi's garage wall in Louisville, Kentucky, U.S., June 4, 2021. REUTERS/Amira Karaoud 

Brood X cicadas, that emerged the earth 2 weeks ago after 17 years, are seen on Jeana and Manooch Saeedi's house wall in Louisville, Kentucky, U.S., June 4, 2021. REUTERS/Amira Karaoud 

Brood X cicadas, that emerged from the ground 2 weeks ago after 17 years, are seen in Jeana and Manooch Saeedi's son swimming pool, in Louisville, Kentucky, U.S., June 4, 2021. REUTERS/Amira Karaoud 

Brood X cicadas, that emerged the earth 2 weeks ago after 17 years, are seen on a slide in Jeana and Manooch Saeedi's backyard, in Louisville, Kentucky, U.S., June 4, 2021. REUTERS/Amira Karaoud 

Brood X cicadas, that emerged the ground 2 weeks ago after 17 years, are seen all over the plants in the backyard of Jeana and Manooch Saeedi's house, in Louisville, Kentucky, U.S., June 4, 2021. REUTERS/Amira Karaoud 

David Rothenberg, a professor of philosophy and music at the New Jersey Institute of Technology, plays the clarinet along with the sounds of cicadas at a nature preserve in Princeton, New Jersey, U.S., June 2, 2021. Picture taken June 2, 2021. REUTERS/Kevin Fogarty 

Cicada husks are stuck to a tree in Princeton, New Jersey, U.S., June 2, 2021. REUTERS/Joseph Ax 

Cicada husks are stuck to a tree in Princeton, New Jersey, U.S., June 2, 2021. REUTERS/Joseph Ax 

A Brood X cicada crawls amid a pile of cicada husks at the base of a tree in Princeton, New Jersey, U.S., June 2, 2021. REUTERS/Joseph Ax 

A Brood X cicada perches on a leaf in Princeton, New Jersey, U.S., June 2, 2021. REUTERS/Joseph Ax 

A Brood X cicada perches on a leaf in Princeton, New Jersey, U.S., June 2, 2021. REUTERS/Joseph Ax 

Cicada husks pile up below a tree in Princeton, New Jersey, U.S., June 2, 2021. REUTERS/Joseph Ax TPX IMAGES OF THE DAY 

A cicada flies over the head of a member of the armed forces taking part in the Flags-In ceremony, where over 1,000 service members place flags in front of more than 260,000 headstones in Arlington National Cemetery in Arlington, Virginia, U.S., May 27, 2021. REUTERS/Kevin Lamarque 

A dead cicada lies on a sidewalk in downtown Washington D.C., U.S, May 17, 2021. REUTERS/Carlos Barria SEARCH ''CICADAS BARRIA'' FOR THIS STORY. SEARCH ''WIDER IMAGE'' FOR ALL STORIES 

Virginia photographer and cicada enthusiast Oxana Ware poses for a photo in Arlington, Virginia, U.S., May 25, 2021. REUTERS/Kevin Fogarty 

Newly emerged cicadas stand on a tree in Rock Creek park in Washington D.C., U.S., May 24, 2021. REUTERS/Carlos Barria SEARCH "CICADAS BARRIA" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES? 

Chris Simon, an evolutionary biologist at the University of Connecticut, holds a sample of a newly emerged Brood X cicada during a field trip to map out and collect samples, near Blairsville, Georgia, U.S., May 22, 2021. "As the climate gets warmer, you get a longer growing season. And if you get a longer growing season, the cicadas can get bigger every year," Simon says. "So there's more ready to come out four years early." REUTERS/Carlos Barria SEARCH "CICADAS BARRIA" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

A net is used by Chris Simon, an evolutionary biologist at the University of Connecticut, (not pictured), to capture Brood X cicadas during a field trip to map out and collect samples near Blairsville, Georgia, U.S., May 22, 2021. REUTERS/Carlos Barria SEARCH "CICADAS BARRIA" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

A newly emerged Brood X cicada flies away as it is freed by Chris Simon, an evolutionary biologist at the University of Connecticut, during a field trip to map out and collect samples near Blairsville, Georgia, U.S., May 22, 2021. "As the climate gets warmer, you get a longer growing season. And if you get a longer growing season, the cicadas can get bigger every year," Simon says. "So there's more ready to come out four years early." REUTERS/Carlos Barria SEARCH "CICADAS BARRIA" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Brood X cicadas mate near Blairsville, Georgia, U.S., May 22, 2021. REUTERS/Carlos Barria SEARCH "CICADAS BARRIA" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Chris Simon, an evolutionary biologist at the University of Connecticut, looks at a map of the south east of United States with information about newly emerged Brood X cicadas, as she prepares to go on a field trip to map out and collect samples, in Blairsville, Georgia, U.S., May 22, 2021. "The biggest questions are: Is climate change changing their life cycles? And then, how does it change them?" said Simon. REUTERS/Carlos Barria SEARCH "CICADAS BARRIA" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Chris Simon, an evolutionary biologist at the University of Connecticut, and her husband Stephen Chiswell, an oceanographer, visit a forrest to map out and collect samples of newly emerged Brood X cicadas during a field trip near Blairsville, Georgia, U.S., May 22, 2021. "The biggest questions are: Is climate change changing their life cycles? And then, how does it change them?" said Simon. REUTERS/Carlos Barria SEARCH "CICADAS BARRIA" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES 

Cicada husks from Brood X are stuck to a tree at the U.S. Capitol in Washington, U.S., May 22, 2021. REUTERS/Erin Scott TPX IMAGES OF THE DAY 

A researcher removes a nymph cicada from a tree in order to test it for toxins during a study from the University of Indiana investigating the insects absorption of pollutants in soil. Brood X or Brood 10 cicadas have begun emerging from the ground after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. Picture taken May 21, 2021. REUTERS/Cheney Orr 

Nymph cicadas crawl on the hand and arm of a researcher after being collected in order to test them for toxins during a study from the University of Indiana investigating the insects absorption of pollutants in soil as Brood X or Brood 10 cicadas have begun emerging from the ground after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. Picture taken May 21, 2021. REUTERS/Cheney Orr 

A girl removes a nymph cicada from a tree, as Brood X or Brood 10 cicadas have begun emerging from the ground after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. Picture taken May 21, 2021. REUTERS/Cheney Orr 

Nymph cicadas rest on the arm of a student from the University of Indiana, as Brood X or Brood 10 cicadas have begun emerging from the ground after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. Picture taken May 21, 2021. REUTERS/Cheney Orr 

A cicada walks through the grass, as Brood X or Brood 10 cicadas have begun emerging from the earth after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. REUTERS/Cheney Orr 

A student from the University of Indiana photographs a pile of cicadas and exoskeletons at the base of a tree on campus, as Brood X or Brood 10 cicadas have begun emerging from the ground after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. Picture taken May 21, 2021. REUTERS/Cheney Orr 

A student removes a nymph cicada from a tree in order to test it for toxins during a study from the University of Indiana investigating the insects absorption of pollutants in soil as Brood X or Brood 10 cicadas have begun emerging from the ground after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. Picture taken May 21, 2021. REUTERS/Cheney Orr 

Nymph cicadas are seen in a test tubes in order to be checked for toxins during a study from the University of Indiana investigating the insects absorption of pollutants in soil as Brood X or Brood 10 cicadas have begun emerging from the ground after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. Picture taken May 21, 2021. REUTERS/Cheney Orr 

A student removes a nymph cicada from a tree in order to test it for toxins during a study from the University of Indiana investigating the insects absorption of pollutants in soil as Brood X or Brood 10 cicadas have begun emerging from the ground after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. Picture taken May 21, 2021. REUTERS/Cheney Orr 

A student displays a nymph cicada in a test tube that will tested for toxins during a study from the University of Indiana investigating the insects absorption of pollutants in soil as Brood X or Brood 10 cicadas have begun emerging from the ground after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. Picture taken May 21, 2021. REUTERS/Cheney Orr 

Young trees are wrapped in netting to prevent the insects from depositing eggs in the small branches as Brood X or Brood 10 cicadas have begun emerging from the ground after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. Picture taken May 21, 2021. REUTERS/Cheney Orr 

A cicada comes out of its shell, as Brood X or Brood 10 cicadas have begun emerging from the ground after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. Picture taken May 21, 2021. REUTERS/Cheney Orr 

A researcher measures CO2 emissions from a cicada emergence hole being part of a study from the University of Indiana investigating the effects of cicada emergence on the release of greenhouse gasses as Brood X or Brood 10 cicadas have begun emerging from the ground after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. Picture taken May 21, 2021. REUTERS/Cheney Orr 

A cicada emergence hole is identified by a student from the University of Indiana as Brood X or Brood 10 cicadas have begun emerging from the ground after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. Picture taken May 21, 2021. REUTERS/Cheney Orr 

A cicada emergence hole is identified and marked by researchers and students from the University of Indiana being part of a study investigating the effects of cicada emergence on the release of greenhouse gasses as Brood X or Brood 10 cicadas have begun emerging from the earth after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. Picture taken May 21, 2021. REUTERS/Cheney Orr 

A cicada emergence hole is seen after having been identified and marked by researchers and students from the University of Indiana being part of a study investigating the effects of cicada emergence on the release of greenhouse gasses as Brood X or Brood 10 cicadas have begun emerging from the earth after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. Picture taken May 21, 2021. REUTERS/Cheney Orr 

In anticipation of the emergence of billions of periodical cicadas, young trees are wrapped in netting to prevent the insects from depositing eggs in the small branches as Brood X or Brood 10 cicadas have begun emerging from the ground after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. Picture taken May 21, 2021. REUTERS/Cheney Orr 

A squirrel eats a cicada, as Brood X or Brood 10 cicadas have begun emerging from the ground after 17 years, in Bloomington, Indiana, U.S., May 21, 2021. Picture taken May 21, 2021. REUTERS/Cheney Orr