Since May this year, about 30 billion cicadas in the United States have recovered after 17 years of dormancy in the ground! After the surface temperature reaches 18 degrees Celsius, they break ground. On the road with many trees, it is simply "corpses all over the field"...
Seventeen cicadas are named in English according to Broods, and this year they are called Brood X. Cicadas, which were thought to be seen only in the countryside and in the woods, flew to the U.S. Congress. When the CNN reporter was broadcast live in Congress, a cicada climbed directly on him, and the reporter shouted Sh*t!
The cicadas did not spare the White House. Last week, Xiao Wang and the cameraman saw a lot of "cicada corpses" in the White House. Even the White House duty reporter will report to everyone in the email where to see the cicada today.
In the off-season, the seventeen-year cicada has also become the focus of attention of White House reporters, who have taken photos to commemorate the occasion.
NBC reporter tweeted that cicadas have come to the White House!
Outside the White House, tourists take a group photo with the White House with cicadas
The parking lot outside the White House didn't go either
When walking the dog, the difficulty has increased by 10 times in the past! Because there are cicadas everywhere, I am afraid of stepping on them, and I am afraid that the dogs will not stop eating...
The host wrote: Cicada buffet dinner
And the owner simply put a mask on the dog
<h1 class="pgc-h-arrow-right" data-track="22" > a seventeen-year-old cicada</h1>
The Seventeen-Year-Old Cicada is a unique cyclic cicada in North America, where the larvae hatch and burrow directly into the ground and spend most of their lives underground, sucking the sap of tree roots to survive. Thirteen years (and another thirteen-year cicada) or seventeen years later, they will break ground and feather, mate, lay eggs, and die within 4-6 weeks. After the eggs hatch, they move on to the next life cycle. In the eastern United States, every thirteen or seventeen years, there will be a large number of cicadas.
What's even more interesting is that whether it is a thirteen-year cicada or a seventeen-year cicada, it is a prime number. This is not a coincidence, but to avoid predators. Because the life cycle of thirteen and seventeen years will only occur once at the same point in time if it is 13X17 = 221 years. This avoids the possibility of extinction.
Randel T. Cox of the University of Memphis and C.E. Carlton of the University of Arkansas have calculated that the longer the cycle, the higher the survival rate. The survival rate of 7-year cicadas is 7%, the survival rate of 11-year cicadas is 51%, and the survival rate of 17-year cicadas is 96%.
The areas they cover include fourteen states and Washington, D.C.
Discovery Discovery Channel has given Seventeen Years of Cicada a live broadcast directly online
If you're curious about what the sounds of cicadas in seventeen years look like? The Americans will tell you: like an alien spacecraft landing.
Seventeen years of cicada chirping from ice ru look at the United States 00:0000:15
Since tens of billions of cicadas sing collectively only once every seventeen years, many unsuspecting Americans mistakenly thought that the siren was ringing and blew up the 911 call. A fire brigade in New York State had to send out social media to introduce seventeen-year-old cicadas to residents and describe them as probably the noisiest insects, sounding up to 120 decibels.
Seventeen-year-old cicadas are basically harmless to people and trees, do not bite people, and do not transmit disease. However, there were so many cicadas in Wuyang at once, or some Americans were scared enough to call the insect control company directly and ask them to spray insecticide.
American insecticidal company Orkin told customers that pesticides really can't solve the problem! It is a complete waste and a pollution of the environment. From May to July, there will be tens of billions of cicadas, which cannot be eliminated at once.
What you may not expect is that cicadas are going to pee. When thousands of cicadas perch on the branches, their urine will fall like rain. Scientists explain that the reason cicadas "urinate frequently" is that they are active at the hottest time, absorbing the liquid of the tree as a nutrient and cooling down. When water evaporates from their bodies, it can help cicadas cool down, just as people have to sweat. But when too much water in the body can't be drained, they have to get on the trumpet. Seventeen years of cicadas are not much urine, if the following cicadas are in the tree, then the people under the tree will have to play umbrellas!
The earliest record of seventeen-year cicadas in American history appeared in 1715, when a Philadelphia priest documented the creature. It was only in 1737 that botanist John Bartram began to describe and observe the insect in detail. The Swedish naturalist Pehr Kalm then observed and documented in detail the outbreak of cyclic cicadas during his visit to New Jersey and Pennsylvania in 1749, and wrote in a Swedish academic journal in 1756 that these insects appeared every seventeen years.
But at the time, many people still thought it was a locust. Rock star Bob Dylan even wrote a song for The Seventeenth Cicada in 1970, "Locust Day," documenting the days of the 1970 cycle of cicada outbreaks. The lyrics are "Locusts sing beautiful melodies, yes, locusts are singing, they are singing for me." ”
<h1 class="pgc-h-arrow-right" data-track="73" > seventeen years of cicada fancy eating</h1>
Before Xiao Wang posted a seventeen-year introduction of cicadas on Weibo, the unanimous reaction of netizens was: fried! In fact, Americans did not waste a flavorful dish that appeared in the past seventeen years. A variety of fancy ways to eat are also emerging: from main courses to desserts, from Western food to Chinese methods, to Mexican cuisine, "dark cuisine" is full of tricks!
Are chocolate chip cookies OK?
Cicada chocolate
Deep frying: cicada rice?
Miso cicada soup
Grilled cicada skewers
Stir-fried cicadas with vegetables
Mexican cicada roll
Don't know if your hometown has a custom of eating cicadas? What is it to do?
After seventeen years of dormancy, the time to actually live on the ground is actually only four to six weeks, and after breeding the next generation, it disappears from the earth until the next seventeen years, their next generation breaks the ground again. I have to sigh the magic of nature!