WEBVTT - Rise of the Cicadas, Part 2

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<v Speaker 1>Welcome to Stuff to Blow Your Mind production of iHeartRadio.

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<v Speaker 2>Hey, welcome to Stuff to Blow Your Mind. My name

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<v Speaker 2>is Robert Lamb.

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<v Speaker 3>And I am Joe McCormick. And hey, Rob, you're back.

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<v Speaker 3>You've been out of the country.

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<v Speaker 2>That's right. Yeah, me and the FAM just spent two

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<v Speaker 2>weeks in Japan so much fun. Highly recommend it, but

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<v Speaker 2>it also means that, yeah, we're back. I'm only on

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<v Speaker 2>my second day back and I'm still somewhat jet lagged,

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<v Speaker 2>So I'm going to apologize in advance for any extra

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<v Speaker 2>fumbles that I make today in handling our notes in

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<v Speaker 2>our recording.

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<v Speaker 3>What's the time difference EUS Eastern to Japan?

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<v Speaker 2>What it's like thirteen hours? I believe it's I was

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<v Speaker 2>constantly breaking my brain by pulling up the world clock

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<v Speaker 2>on my phone and figuring out exactly like where we

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<v Speaker 2>were and where back home was, and then all of

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<v Speaker 2>that's fallen apart since I've come back, and I'm attempting

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<v Speaker 2>to readjust.

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<v Speaker 3>But it's like an almost perfect to day night inversion.

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<v Speaker 2>Yeah, yeah, pretty much, and really was. It was easy,

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<v Speaker 2>easy enough to get used to it going over. It'sn't

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<v Speaker 2>just been much harder coming back.

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<v Speaker 3>Well, folks. If you remember from before we were out

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<v Speaker 3>for a couple of weeks, we had a kind of

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<v Speaker 3>strange but I think good scheme where we broke right

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<v Speaker 3>in the middle of a series so we could jump

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<v Speaker 3>back in with part two of our talk about cicadas. Now,

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<v Speaker 3>of course it's been a while, so you might not

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<v Speaker 3>remember some of the things we talked about in part one,

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<v Speaker 3>But in that episode we discussed our personal experiences with cicadas.

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<v Speaker 3>We talked about finding their abandoned former exoskeletons after molting,

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<v Speaker 3>or just finding random body parts, wings, legs, and stuff

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<v Speaker 3>like that. Here and there, we talked about how cicadas

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<v Speaker 3>fit into the insect class as a member of the

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<v Speaker 3>so called true bugs, the Hymiptera, and we had a

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<v Speaker 3>digression on the etymological history of the word bug in

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<v Speaker 3>English referred to monsters and scarecrows before it actually referred

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<v Speaker 3>to insects. We talked about the physical characteristics of cicadas.

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<v Speaker 3>They're piercing and sucking mouthparts. They have this needle like

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<v Speaker 3>mouth called a rostrum, which they used to feed off

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<v Speaker 3>of Xylum sap from plant roots and then stems in

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<v Speaker 3>their adult stage. We talked about how they emit their

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<v Speaker 3>famous song, not by rubbing together wings or legs like

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<v Speaker 3>some other insects, but with dedicated organs called timbals, these

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<v Speaker 3>kind of corrugated drumheads on the sides of their bodies

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<v Speaker 3>that they can buckle and snap back and forth to

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<v Speaker 3>make a sound. We of course talked about their reproductive cycle,

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<v Speaker 3>with an early developmental stage taking place underground where they

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<v Speaker 3>feed on Xylum from plant roots, and then their emergence

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<v Speaker 3>as an adult into the air or above where they mate.

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<v Speaker 3>And then of course after they the females lay eggs

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<v Speaker 3>with this wonderful knife like ovipositor that they gouge into

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<v Speaker 3>twigs and soft tree branches to make little canyons for

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<v Speaker 3>their eggs to live in. And then finally we talked

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<v Speaker 3>about the periodical cicadas of North America that we have

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<v Speaker 3>here and we just recently had a big emergence in

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<v Speaker 3>our area. The periodical cicadas which emerge not every year everywhere,

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<v Speaker 3>as most cicadas do, but instead after bizarrely long periods

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<v Speaker 3>of underground development, so some go thirteen years before emerging,

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<v Speaker 3>some go seventeen years. And we discussed evolutionary pressures that

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<v Speaker 3>could have led to this adaptation. One hypothesis that we

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<v Speaker 3>talked about, and to be clear, this is not the

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<v Speaker 3>only one. There are other possible explanations in the mix,

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<v Speaker 3>and we might try to get into them in a

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<v Speaker 3>later part of the series. But one hypothesis we talked

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<v Speaker 3>about is that it prevents local predators and parasitoids from

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<v Speaker 3>adapting to cicadas as regular prey or host animals, because

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<v Speaker 3>once they're out, as I've read in multiple places, everything

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<v Speaker 3>eats them. Cicadas are nutritious, they have almost nothing in

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<v Speaker 3>the way of individual defenses, and there are a zillion

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<v Speaker 3>of them, so it's nature's buffet. But the idea is

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<v Speaker 3>if you only appear at weird, irregular time intervals, predators

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<v Speaker 3>can't come to depend on you, and there won't be

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<v Speaker 3>enough of them to eat all of you when you

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<v Speaker 3>do come out. So it's like if you had a

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<v Speaker 3>buffet that you didn't want too many people eating at

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<v Speaker 3>so you know, and it was delicious and you had

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<v Speaker 3>lots of food, but instead you just like were very

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<v Speaker 3>squirrely about what you're operating hours were.

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<v Speaker 2>Yeah, Yeah, it's the the complete inversion of what you

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<v Speaker 2>would expect with some sort of a business model for

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<v Speaker 2>a restaurant, a buffet or anything that's like bringing in bodies.

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<v Speaker 2>You know, in this case want you want your audience.

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<v Speaker 2>You want the consumers to be taken off guard so

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<v Speaker 2>that they can't be ready for it. They can't ramp

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<v Speaker 2>up to meet this dietary bounty that occurs again, not

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<v Speaker 2>every year, but every thirteen or every seventeen years with

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<v Speaker 2>these periodical cicadas.

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<v Speaker 3>But of course many species of cicadas are just annual cicadas,

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<v Speaker 3>and they do come out every year, and many things

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<v Speaker 3>do still eat them.

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<v Speaker 2>That's right. But that leads to the big question, right, Joe,

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<v Speaker 2>Lots of things can eat them, We can eat them.

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<v Speaker 2>We'll probably get into that a little bit more in

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<v Speaker 2>a subsequent episode, But can they eat us? To question

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<v Speaker 2>that has garnered a lot of discussion of you.

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<v Speaker 3>Yes, it's a wonderful question. It's a question people apparently

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<v Speaker 3>cannot stop asking. So if you go back through newspaper articles,

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<v Speaker 3>radio programs, all kinds of media that accompany these big

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<v Speaker 3>cicada booms whenever they happen, it seems readers and listeners

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<v Speaker 3>are always expressing concern that the cicadas will bite them

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<v Speaker 3>or sting them. And then maybe if people know a

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<v Speaker 3>bit more about their morphology, about the piercing and sucking

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<v Speaker 3>mouthparts rather than the chewing and tearing arrangement some other

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<v Speaker 3>bugs have, they might ask instead, will Cicada's stab their

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<v Speaker 3>needle like rostra into my veins and drain all my blood?

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<v Speaker 3>And yes, one historical newspaper article does discuss this possibility.

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<v Speaker 3>The short answer is no, no, no, this does not happen.

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<v Speaker 3>But it is kind of interesting to explore the way

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<v Speaker 3>this question keeps coming up over and over again, because

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<v Speaker 3>it turns out recent generations are not the first to

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<v Speaker 3>arrive at this question. People have been asking this for

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<v Speaker 3>a long time. So I was looking for sources on

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<v Speaker 3>this and I came across an article by an author

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<v Speaker 3>whose name always fills me with delight when I see it,

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<v Speaker 3>May Berenbaum. May Barnbaum is an American entomologist affiliated with

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<v Speaker 3>the University of Illinois. She has been recently and I

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<v Speaker 3>think still is editor in chief of PNAS, and we've

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<v Speaker 3>cross paths with her work a lot on stuff to

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<v Speaker 3>blow your mind because she has written a lot of

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<v Speaker 3>science based articles that cover I don't know, our kind

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<v Speaker 3>of beat like strange and funny questions about insects, but

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<v Speaker 3>with a scientifically informed perspective. And just one example is

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<v Speaker 3>I think we did an article of hers that was

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<v Speaker 3>talking about cases of bugs crawling inside people's bodies, stuff

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<v Speaker 3>like that. This particular article was called same Old Cicada Song,

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<v Speaker 3>and it was published in the magazine American Entomologist in

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<v Speaker 3>twenty twenty one, related to a big periodical cicada emergence

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<v Speaker 3>that year, specifically brood Now do we say brood X

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<v Speaker 3>or brood ten?

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<v Speaker 2>I mean, I always read it in my head is

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<v Speaker 2>brute x, but of course it's brood ten.

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<v Speaker 3>I think we should follow the Jason X convention though,

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<v Speaker 3>even though it you know, it's the tenth Jason movie,

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<v Speaker 3>but everybody says Jason X. So I think it should

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<v Speaker 3>be brood x brude X. It is so. In this article,

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<v Speaker 3>Barenbaum talks about the long history of media stories about

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<v Speaker 3>emerging cicada broods, and she goes way back into the

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<v Speaker 3>newspaper archives and finds a story from March first, eighteen

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<v Speaker 3>sixty in the New York Times. This would have been

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<v Speaker 3>only nine years after the paper was founded that begins

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<v Speaker 3>as follows the locust plague to reappear this year. You

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<v Speaker 3>know that's classic headline flair all caps locust plague about

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<v Speaker 3>insects that once again harm no one. So the article

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<v Speaker 3>goes on. Mister Gideon B. Smith communicates the following unpleasant

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<v Speaker 3>bit of entomological news through the National Intelligencer. The locusts

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<v Speaker 3>or cicada septin decim will appear very extensively this year,

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<v Speaker 3>occupying probably a larger surface of the country than those

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<v Speaker 3>of any other year. Now a note about referring to

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<v Speaker 3>them as locusts. We talked in the last episode about how,

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<v Speaker 3>of course cicadas are not locusts. Locusts are a type

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<v Speaker 3>of swarming grasshopper, and cicadas are not even especially closely

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<v Speaker 3>related to grasshoppers. They're both insects. But cicadas again are hymiptera.

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<v Speaker 3>They are the true bugs. But many of the popular

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<v Speaker 3>sources from the nineteenth century that discuss cicadas do refer

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<v Speaker 3>to them as locusts or sometimes with other common names

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<v Speaker 3>like harvest flies. But locust is very common, and because

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<v Speaker 3>of course locusts are associated with threats to crops, I

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<v Speaker 3>think this sort of bleeds over that, like calling incorrectly

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<v Speaker 3>calling cicada's locusts bleeds over into this idea that cicadas

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<v Speaker 3>themselves are a threat to crops, which they are generally.

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<v Speaker 2>Not right, right, and making it far easier to confuse

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<v Speaker 2>yourself not only with accounts of actual locust based destruction,

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<v Speaker 2>but even like cultural biblical mentions of the locusts and

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<v Speaker 2>plagues of locusts.

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<v Speaker 3>Exactly. Yeah. So after this, barren Baum goes on to

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<v Speaker 3>highlight another article that appeared in The Times a little

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<v Speaker 3>more than seventeen years after that first one, in June

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<v Speaker 3>eighteen seventy seven, for the seventeen year re emergence of

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<v Speaker 3>the same brood. This article was called the Dry Cicada,

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<v Speaker 3>and she brings up this article as the first example

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<v Speaker 3>of a recurring theme that we'll see in a lot

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<v Speaker 3>of these where the author is starting to argue that

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<v Speaker 3>cicadas are not a threat to humans. And she includes

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<v Speaker 3>a short quote that was so good I had to

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<v Speaker 3>go look up the original article in full, and I'm

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<v Speaker 3>glad I did so. I'm going to summarize a bit

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<v Speaker 3>and read from some of it here. The article starts

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<v Speaker 3>off with a vivid description from the point of view

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<v Speaker 3>of a hypothetical new Yorker. They call them a townsfolk

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<v Speaker 3>visiting the rural districts of New Jersey, and it describes

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<v Speaker 3>the sites and sounds associated with a mass emergence of

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<v Speaker 3>periodical cicadas. It talks about their sound as similar to

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<v Speaker 3>a chorus of tree toads, or to quote the shrilling

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<v Speaker 3>of the railway track when the train is at a

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<v Speaker 3>distance and happens to enter a rock cutting. It describes

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<v Speaker 3>going on a ramble through the woods, seeing characteristic holes

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<v Speaker 3>in the ground as if someone had been stabbing the

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<v Speaker 3>ground with a walking stick, especially near the roots of oaks, chestnut, cottonwood,

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<v Speaker 3>and maple trees, and then finding leftover shells from cicada

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<v Speaker 3>moltz clutching onto the lower branches of trees like festoons.

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<v Speaker 3>And then I'm going to read a paragraph from the

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<v Speaker 3>article here. The author writes, quote, pretty soon one of

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<v Speaker 3>these peculiar creatures will be found, having just freed itself

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<v Speaker 3>from the grim, uncouth shape it has borne for so

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<v Speaker 3>many years. The long, transparent double pair of wings have

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<v Speaker 3>been shaken out from two limp close packed masses into

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<v Speaker 3>their full expanse of brittle pinions. The body takes a

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<v Speaker 3>darker tint, and the red eyes that distinguished this harvest

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<v Speaker 3>fly gleam brightly. The insect is fully prepared for its apotheosis.

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<v Speaker 3>It knows exactly what to do, and before its wings

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<v Speaker 3>can bear it, it begins to travel up the trunk

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<v Speaker 3>of any tree nearby to join the frivolous band of

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<v Speaker 3>its fellows that are making the upper air trimble with

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<v Speaker 3>their love notes. You know, theaper, the newspaper reporting style

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<v Speaker 3>was different back then.

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<v Speaker 2>Yeah, Yeah, they had a whole different ap style book,

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<v Speaker 2>didn't they.

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<v Speaker 3>Yeah. But anyway, so it goes on to talk about

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<v Speaker 3>a few other things, like how how the cicada flies,

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<v Speaker 3>it's mating, and so forth, But then finally it gets

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<v Speaker 3>to the question of whether that frivolous band of fellows

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<v Speaker 3>will kill you. So here I'm going to read again

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<v Speaker 3>from the article. It says, since the larva lives by

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<v Speaker 3>sucking the juices from roots, and the fly has a

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<v Speaker 3>large and strong sucking tube, there seems no reason why

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<v Speaker 3>this locust, as we call it, should not divert its

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<v Speaker 3>attention from the juices of plants to the red juices

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<v Speaker 3>of animals and men like the just like the large

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<v Speaker 3>horse flies before mentioned. Indeed, just as the small and

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<v Speaker 3>maddening mosquito itself. It seems a mere piece of luck,

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<v Speaker 3>perhaps the result of their slow flight, or some arrangement

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<v Speaker 3>of their sucking tubes, their defective digestive their defective digestive system,

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<v Speaker 3>or even the fact that the ancestors of the present

0:13:29.520 --> 0:13:33.679
<v Speaker 3>harvest fly have been invariably well conducted, that the Jerseymen

0:13:33.760 --> 0:13:37.079
<v Speaker 3>of this year still exists in life instead of being

0:13:37.120 --> 0:13:41.680
<v Speaker 3>reduced to a thoroughly pumped frame of flesh. Nothing short

0:13:41.679 --> 0:13:44.920
<v Speaker 3>of plate armor would have saved him. Or it may

0:13:44.960 --> 0:13:48.559
<v Speaker 3>be that the extraordinary parsimony of nature which leads her

0:13:48.760 --> 0:13:52.360
<v Speaker 3>to give the poor harvest fly, after seventeen or thirteen

0:13:52.440 --> 0:13:55.920
<v Speaker 3>years of underground existence, only a few weeks in which

0:13:55.960 --> 0:13:59.679
<v Speaker 3>to buzz in love and deposit the connubial egg. It

0:13:59.720 --> 0:14:03.679
<v Speaker 3>may be the scantness of their allowance of paradise which

0:14:03.720 --> 0:14:08.280
<v Speaker 3>saves New Jersey from periodical depopulation. For if it were

0:14:08.320 --> 0:14:11.800
<v Speaker 3>not for one or more of these counteracting causes, imagine

0:14:11.840 --> 0:14:14.520
<v Speaker 3>the result of an appetite for blood aroused in the

0:14:14.559 --> 0:14:18.720
<v Speaker 3>horny breasts of these gigantic horseflies. Instead of flying with

0:14:18.800 --> 0:14:22.240
<v Speaker 3>comparatively harmless results about the tops of the trees, they

0:14:22.240 --> 0:14:25.760
<v Speaker 3>would descend upon the helpless jerseyman and drive him forth,

0:14:26.000 --> 0:14:28.360
<v Speaker 3>if it be possible to make that distinction with a

0:14:28.480 --> 0:14:32.880
<v Speaker 3>jerseyman to a foreign climb. Love the dig at New

0:14:32.960 --> 0:14:34.720
<v Speaker 3>Jersey residents at the end there.

0:14:35.680 --> 0:14:39.040
<v Speaker 2>Oh man, there's so much to dissect. There, so many

0:14:39.120 --> 0:14:46.000
<v Speaker 2>logical hurdles were vaulted over in this absolute sprint toward

0:14:46.520 --> 0:14:51.040
<v Speaker 2>the fear the possibility that the cicadas could just one

0:14:51.120 --> 0:14:52.880
<v Speaker 2>day wipe out all of New Jersey.

0:14:53.120 --> 0:14:55.760
<v Speaker 3>But I like that it's making the point that cicadas

0:14:55.840 --> 0:15:00.400
<v Speaker 3>don't do this by just elaborating extensively on how they could.

0:15:00.680 --> 0:15:04.840
<v Speaker 2>Yeah, it's like, yeah they could. Yeah, I mean if

0:15:04.920 --> 0:15:07.800
<v Speaker 2>humans had xylum and not blood, if we were trees

0:15:08.360 --> 0:15:11.800
<v Speaker 2>and not mammals, then then sure, yeah, it would be

0:15:11.840 --> 0:15:12.600
<v Speaker 2>a dire threat.

0:15:13.800 --> 0:15:18.080
<v Speaker 3>So unfortunately, I feel like I think the article is

0:15:18.200 --> 0:15:21.240
<v Speaker 3>just dreaming up a whimsical scenario. But I can't quite

0:15:21.320 --> 0:15:24.680
<v Speaker 3>tell if the author is trying to argue against a

0:15:24.760 --> 0:15:28.200
<v Speaker 3>belief that some people actually held at the time that like, oh, yeah,

0:15:28.200 --> 0:15:30.680
<v Speaker 3>they'll drink your blood, and it's saying like, no, if

0:15:31.000 --> 0:15:33.160
<v Speaker 3>they did drink your blood, think how you know it

0:15:33.200 --> 0:15:37.520
<v Speaker 3>would depopulate all of New Jersey every thirteen years. I'm

0:15:37.560 --> 0:15:40.520
<v Speaker 3>not quite sure exactly what this author is trying to

0:15:40.640 --> 0:15:44.120
<v Speaker 3>respond to with this elaborate scenario, but either way, I

0:15:44.200 --> 0:15:47.720
<v Speaker 3>love it. But in any case, it is It certainly

0:15:47.840 --> 0:15:51.320
<v Speaker 3>is the case that people are concerned about the impact

0:15:51.320 --> 0:15:55.080
<v Speaker 3>of cicadas, both on plants and on people. Whether or

0:15:55.120 --> 0:15:56.760
<v Speaker 3>not they think, you know, people are actually going to

0:15:56.800 --> 0:15:59.120
<v Speaker 3>be drained of their blood, they do at least think

0:15:59.120 --> 0:16:02.080
<v Speaker 3>that cicadas are going to bite and sting them. So

0:16:02.440 --> 0:16:06.000
<v Speaker 3>Barenbaum finds more articles in the Times. The next one

0:16:06.120 --> 0:16:09.280
<v Speaker 3>is once again seventeen years after this last one, so

0:16:09.320 --> 0:16:12.240
<v Speaker 3>this would be in May eighteen ninety four, and it

0:16:12.360 --> 0:16:15.880
<v Speaker 3>debunks what appear to be several common misconceptions banging around

0:16:15.960 --> 0:16:18.200
<v Speaker 3>at the period. In the period, one is something we

0:16:18.240 --> 0:16:20.680
<v Speaker 3>talked about in part one that you brought up, rob,

0:16:20.720 --> 0:16:24.920
<v Speaker 3>the idea of prognostication via cicada wings that, like the

0:16:25.160 --> 0:16:28.520
<v Speaker 3>wa means that a war is going to happen, though

0:16:28.600 --> 0:16:31.440
<v Speaker 3>that's not really about cicadas, you know, it's just a

0:16:31.520 --> 0:16:36.880
<v Speaker 3>general superstition, so you know, the article attempts to address that. However,

0:16:36.960 --> 0:16:40.200
<v Speaker 3>the second misconception addressed is the idea that the cicada

0:16:40.280 --> 0:16:43.680
<v Speaker 3>can bite or sting, which the author says is not true.

0:16:44.120 --> 0:16:44.480
<v Speaker 2>Quote.

0:16:44.800 --> 0:16:47.800
<v Speaker 3>Other persons have feared that these insects may sting and

0:16:47.840 --> 0:16:51.200
<v Speaker 3>carefully avoid handling them, as they have no sting and

0:16:51.280 --> 0:16:54.760
<v Speaker 3>are only armed with a beak for sucking, which however,

0:16:54.920 --> 0:16:59.080
<v Speaker 3>is never used by the perfect fly. Such fears are groundless.

0:17:00.160 --> 0:17:02.320
<v Speaker 3>So we're getting a very different the perfect fly here.

0:17:02.400 --> 0:17:06.480
<v Speaker 3>This is like a be a tific view of the cicada.

0:17:06.560 --> 0:17:10.399
<v Speaker 3>It's like painting it in a very rosy picture. Now,

0:17:11.000 --> 0:17:13.640
<v Speaker 3>something that people do wonder they're armed with this knowledge,

0:17:13.680 --> 0:17:16.120
<v Speaker 3>like Okay, yeah, they don't have a stinger, they don't

0:17:16.160 --> 0:17:20.320
<v Speaker 3>have biting mouth parts. Could they stab you with the

0:17:20.359 --> 0:17:24.840
<v Speaker 3>beak if you threatened them? I've turned up a mixed

0:17:24.920 --> 0:17:28.840
<v Speaker 3>collection of answers on this. For example, I found an

0:17:28.880 --> 0:17:33.320
<v Speaker 3>older book by the Field Museum entomologist William Josiah Gerhard,

0:17:33.440 --> 0:17:37.639
<v Speaker 3>published in nineteen twenty three called The Periodical Cicada, in

0:17:37.640 --> 0:17:42.800
<v Speaker 3>which Gearhard addresses these concerns by saying, quote, under favorable conditions,

0:17:43.040 --> 0:17:46.560
<v Speaker 3>this insect could readily pierce the human skin by means

0:17:46.560 --> 0:17:49.880
<v Speaker 3>of its beak, but apparently it rarely or never attempts

0:17:49.880 --> 0:17:52.280
<v Speaker 3>to protect itself in such a manner.

0:17:52.720 --> 0:17:56.560
<v Speaker 2>Yeah, because again coming back to the basic evolutionary tactic,

0:17:56.640 --> 0:18:02.159
<v Speaker 2>here is overwhelmingtory predatory threats. You know. Again, it's there

0:18:02.200 --> 0:18:05.159
<v Speaker 2>are so many of us you cannot possibly kill and

0:18:05.240 --> 0:18:07.520
<v Speaker 2>eat all of us. Enough of us are going to survive.

0:18:07.800 --> 0:18:10.640
<v Speaker 3>Read right. So, Yeah, the food at this buffet wants

0:18:10.680 --> 0:18:13.760
<v Speaker 3>to defend itself. It doesn't defend It doesn't defend itself

0:18:13.800 --> 0:18:17.639
<v Speaker 3>by fighting back. It defends itself by being a part

0:18:17.680 --> 0:18:19.840
<v Speaker 3>of a mass of so much food that it cannot

0:18:19.880 --> 0:18:20.560
<v Speaker 3>all be eaten.

0:18:20.800 --> 0:18:23.800
<v Speaker 2>Yeah, you can't possibly get through this many steamer trays

0:18:24.320 --> 0:18:28.440
<v Speaker 2>of cicada. Yeah, you're out of luck. So that's where

0:18:28.520 --> 0:18:32.240
<v Speaker 2>they have That's where the investment is, not in individual

0:18:32.280 --> 0:18:33.480
<v Speaker 2>defensive capabilities.

0:18:33.840 --> 0:18:36.879
<v Speaker 3>Yeah. And so I detect in this phrasing, even of

0:18:36.920 --> 0:18:39.920
<v Speaker 3>this older book, that even though he's saying it's possible,

0:18:40.000 --> 0:18:43.560
<v Speaker 3>he's not aware of any examples of this happening. And

0:18:43.640 --> 0:18:45.480
<v Speaker 3>he's written a whole book on the subject, so it

0:18:45.480 --> 0:18:48.399
<v Speaker 3>seems like he would have come across some examples if

0:18:48.400 --> 0:18:52.000
<v Speaker 3>they were known about. He only mentions this as a hypothetical,

0:18:52.240 --> 0:18:55.320
<v Speaker 3>And most modern sources that I found that consult actual

0:18:55.520 --> 0:18:58.040
<v Speaker 3>entomologists say that as far as they know this does

0:18:58.080 --> 0:19:03.000
<v Speaker 3>not happen. So can a cicada beak you? I don't know.

0:19:03.040 --> 0:19:05.000
<v Speaker 3>The way I would think think about it is like

0:19:05.240 --> 0:19:08.240
<v Speaker 3>if you are handling a cicada, like it does have

0:19:08.440 --> 0:19:12.439
<v Speaker 3>a hard exoskeleton, in some parts of that exoskeleton can

0:19:12.520 --> 0:19:15.399
<v Speaker 3>be kind of pokey. So it's conceivable that one of

0:19:15.440 --> 0:19:17.720
<v Speaker 3>these pokey parts could give you a little scratch or

0:19:17.720 --> 0:19:20.560
<v Speaker 3>a poke, but it's not going to get you like

0:19:20.640 --> 0:19:32.960
<v Speaker 3>other insects would. So even though it seems quite clear

0:19:33.040 --> 0:19:36.240
<v Speaker 3>that the periodical cicadas of North America do not bite

0:19:36.320 --> 0:19:40.080
<v Speaker 3>or sting, and any kind of poke you got from them,

0:19:40.119 --> 0:19:41.840
<v Speaker 3>you would really have to be like sort of go

0:19:41.920 --> 0:19:44.439
<v Speaker 3>in for it by handling them intentionally, and even then

0:19:44.480 --> 0:19:47.159
<v Speaker 3>it seems like it would probably be accidental. There's just

0:19:47.240 --> 0:19:50.720
<v Speaker 3>not really anything to worry about. But I think these

0:19:50.800 --> 0:19:53.439
<v Speaker 3>questions are going to keep coming up because one of

0:19:53.480 --> 0:19:57.800
<v Speaker 3>the themes of me May Berenbaum's article is how writing

0:19:57.840 --> 0:20:01.800
<v Speaker 3>about cicadas seems to be in a constant struggle to

0:20:02.040 --> 0:20:06.439
<v Speaker 3>deal with myths and misconceptions that arise perpetually again and again.

0:20:06.840 --> 0:20:09.880
<v Speaker 3>She quotes another article from The New York Times from

0:20:10.000 --> 0:20:14.560
<v Speaker 3>nineteen thirty six by Donald Peaty, which calls the periodical

0:20:14.600 --> 0:20:19.280
<v Speaker 3>cicada the most misunderstood insect on our continent and talks

0:20:19.320 --> 0:20:22.200
<v Speaker 3>about how it's necessary for the federal government to issue

0:20:22.200 --> 0:20:25.480
<v Speaker 3>bulletins to people in the eastern United States to quell

0:20:25.520 --> 0:20:29.840
<v Speaker 3>the misconceptions. Pd writs, quote and people may at last

0:20:29.960 --> 0:20:33.040
<v Speaker 3>learn that the cicada does not eat crops, does not

0:20:33.200 --> 0:20:36.800
<v Speaker 3>sting babies. No authentic case of baby stinging has come

0:20:36.800 --> 0:20:40.280
<v Speaker 3>to hand or invade gardens. But despite the fact that

0:20:40.840 --> 0:20:43.879
<v Speaker 3>people with knowledge have been debunking this for over one

0:20:43.920 --> 0:20:48.200
<v Speaker 3>hundred years, it never sticks. And she cites example after

0:20:48.280 --> 0:20:51.960
<v Speaker 3>example of these articles over time over the decades, responding

0:20:51.960 --> 0:20:55.520
<v Speaker 3>to reader concerns that cicadas are the same thing as locusts,

0:20:55.600 --> 0:20:58.119
<v Speaker 3>that they eat crops in foliage, that they bite or

0:20:58.200 --> 0:21:02.840
<v Speaker 3>sting people, especially children, And they don't do that. I

0:21:02.880 --> 0:21:05.720
<v Speaker 3>mean they it's not that they can never cause any

0:21:05.800 --> 0:21:09.879
<v Speaker 3>harm to plants. They can when they lay their eggs

0:21:09.920 --> 0:21:12.720
<v Speaker 3>in the you know, the young the greenwood of some

0:21:12.840 --> 0:21:15.080
<v Speaker 3>plants that can sort of kill some of the tips

0:21:15.080 --> 0:21:18.840
<v Speaker 3>of stems, but they're just generally not that harmful to plants.

0:21:19.440 --> 0:21:22.439
<v Speaker 3>They certainly don't eat crops, and that they don't hurt people.

0:21:23.040 --> 0:21:26.800
<v Speaker 3>And I was thinking about this, about these recurring misconceptions

0:21:26.920 --> 0:21:30.480
<v Speaker 3>about the periodical cicadas. Of course, there are misconceptions about

0:21:30.520 --> 0:21:33.200
<v Speaker 3>all kinds of living creatures. We talk about talk about

0:21:33.200 --> 0:21:34.480
<v Speaker 3>them on the show all the time, but it just

0:21:34.480 --> 0:21:39.200
<v Speaker 3>seems they are especially prevalent about cicadas. Every time there

0:21:39.280 --> 0:21:43.320
<v Speaker 3>is a new, local brewed emergence, people are baffled anew

0:21:43.600 --> 0:21:46.560
<v Speaker 3>and prone to the same superstitions that we believed in

0:21:46.640 --> 0:21:51.359
<v Speaker 3>last time. And this struck me as very interesting because

0:21:51.400 --> 0:21:54.680
<v Speaker 3>I started to think it's almost as if the periodical

0:21:54.760 --> 0:21:59.240
<v Speaker 3>cicadas are preventing us from adapting to them in the

0:21:59.280 --> 0:22:02.439
<v Speaker 3>same way and by the same method that they prevent

0:22:02.600 --> 0:22:07.119
<v Speaker 3>predators and parasitoids from adapting to them by appearing in

0:22:07.280 --> 0:22:10.200
<v Speaker 3>different areas on these staggered time schedules. Do you know

0:22:10.280 --> 0:22:10.720
<v Speaker 3>what I mean?

0:22:11.240 --> 0:22:15.200
<v Speaker 2>Yeah, Yeah, It's like we instead of having just constant

0:22:15.240 --> 0:22:18.919
<v Speaker 2>news coverage or just you know, annual news coverage about

0:22:20.240 --> 0:22:24.360
<v Speaker 2>mass emergences of cicadas, we get you know, extra concentrated

0:22:24.400 --> 0:22:28.800
<v Speaker 2>news coverage every every so often. Yeah, so we have

0:22:28.880 --> 0:22:31.560
<v Speaker 2>time to sort of forget and then and then to

0:22:31.760 --> 0:22:36.320
<v Speaker 2>sort of grow hungry for new sensationalist headlines, which we

0:22:36.400 --> 0:22:38.880
<v Speaker 2>still have, you know, as we discussed in the last

0:22:38.880 --> 0:22:42.000
<v Speaker 2>episode that we did on cicadas, you know, we still

0:22:42.040 --> 0:22:46.200
<v Speaker 2>have these kind of outrageous news coverage bits that occur

0:22:46.359 --> 0:22:49.000
<v Speaker 2>that seem to even if they don't double down on

0:22:49.040 --> 0:22:52.760
<v Speaker 2>the misinformation aspect of it, they kind of like get

0:22:52.800 --> 0:22:56.720
<v Speaker 2>into the gleeful, ooh bugs aspect of it that is

0:22:56.840 --> 0:22:59.320
<v Speaker 2>almost kind of like the first step in getting to

0:22:59.760 --> 0:23:01.280
<v Speaker 2>a they might suck my blood.

0:23:01.600 --> 0:23:04.200
<v Speaker 3>Yeah. In fact, you know, there are these like different

0:23:04.200 --> 0:23:08.440
<v Speaker 3>scales of plausibility in the people dreaming up scenarios about

0:23:08.440 --> 0:23:10.960
<v Speaker 3>what cicadas could do to them. You know, if you

0:23:11.000 --> 0:23:13.640
<v Speaker 3>don't know anything, it's plausible to imagine they could sting

0:23:13.760 --> 0:23:15.760
<v Speaker 3>or bite you. They're not going to do that, actually,

0:23:15.880 --> 0:23:18.800
<v Speaker 3>but that doesn't seem all that far fetched. And then

0:23:19.119 --> 0:23:21.199
<v Speaker 3>beyond that, you get the will they leave me a

0:23:21.240 --> 0:23:23.440
<v Speaker 3>thoroughly pumped husk? You know, are they going to suck

0:23:23.480 --> 0:23:26.080
<v Speaker 3>out all my blood? That doesn't seem all that plausible.

0:23:26.280 --> 0:23:28.720
<v Speaker 3>And then there's like even weirder stuff.

0:23:29.359 --> 0:23:32.240
<v Speaker 2>Yeah. Yeah. Gene Kritsky and what as I believe his

0:23:32.320 --> 0:23:35.639
<v Speaker 2>latest book, A Tale of Two Broods, dealing with the

0:23:36.280 --> 0:23:40.520
<v Speaker 2>latest cicada emergencies. He goes into a number of different

0:23:40.560 --> 0:23:44.760
<v Speaker 2>angles here, but he includes this following actual example from

0:23:44.800 --> 0:23:48.040
<v Speaker 2>an eighteen seventy one publication in the Grant County Herald

0:23:48.280 --> 0:23:53.400
<v Speaker 2>from Lancaster, Wisconsin. And what's interesting here is he includes

0:23:54.520 --> 0:23:57.080
<v Speaker 2>full or most of the either the entirety or most

0:23:57.119 --> 0:23:59.960
<v Speaker 2>of the article, and most of it seems to be

0:24:00.280 --> 0:24:03.919
<v Speaker 2>rather logical, stressing that cicadas are only a threat to

0:24:03.920 --> 0:24:07.879
<v Speaker 2>tree branches, you know, basically doing a good job of

0:24:07.960 --> 0:24:09.800
<v Speaker 2>laying out the science. But then at the very end,

0:24:10.240 --> 0:24:13.040
<v Speaker 2>it's like they felt like, well, we have to acknowledge

0:24:13.440 --> 0:24:17.119
<v Speaker 2>the superstition in a little bit, so they include this

0:24:17.200 --> 0:24:20.200
<v Speaker 2>last bit quote the insect has no sting and does

0:24:20.240 --> 0:24:22.600
<v Speaker 2>not seem to have the power to bite. It is

0:24:22.720 --> 0:24:26.520
<v Speaker 2>possible then, that in exceedingly rare cases, it has attempted

0:24:26.560 --> 0:24:30.000
<v Speaker 2>and succeeded in depositing an egg in the skull of

0:24:30.040 --> 0:24:33.719
<v Speaker 2>a human being. So you know, once you add that

0:24:33.880 --> 0:24:35.640
<v Speaker 2>at the end, if you're like, but there's still there's

0:24:35.680 --> 0:24:37.600
<v Speaker 2>a non zero chance it could lay an egg in

0:24:37.640 --> 0:24:41.000
<v Speaker 2>your skull, Like, it kind of undoes all that great

0:24:41.040 --> 0:24:43.919
<v Speaker 2>work you just did at dispelling the superstition.

0:24:44.200 --> 0:24:47.679
<v Speaker 3>Well, wait, I believe there's a non zero chances that like,

0:24:48.160 --> 0:24:51.000
<v Speaker 3>has this possibly happened? Doesn't seem super plausible.

0:24:51.040 --> 0:24:53.920
<v Speaker 2>But I mean, I didn't see I've not seen any

0:24:54.880 --> 0:24:58.199
<v Speaker 2>real accounts of this, you know, no medical journal, you know,

0:24:58.520 --> 0:25:00.000
<v Speaker 2>recent or old.

0:25:00.760 --> 0:25:01.680
<v Speaker 3>I heard from a guy.

0:25:01.840 --> 0:25:04.920
<v Speaker 2>Yeah, yeah, it's like somebody said it happened, and can

0:25:04.960 --> 0:25:06.920
<v Speaker 2>you prove that it didn't sort of a thing, you.

0:25:06.840 --> 0:25:11.439
<v Speaker 3>Know, yeah, disprove or except yeah, that's great.

0:25:11.880 --> 0:25:13.639
<v Speaker 2>And even then, I feel like there's a danger in

0:25:13.720 --> 0:25:16.119
<v Speaker 2>us mentioning it here too, that now that's in your mind,

0:25:16.119 --> 0:25:20.159
<v Speaker 2>you're like when you experience the cicadas out there in

0:25:20.160 --> 0:25:22.399
<v Speaker 2>the world, that you're going to think, but could they

0:25:22.480 --> 0:25:24.560
<v Speaker 2>lay an egg in my skull? I don't want that,

0:25:24.960 --> 0:25:27.800
<v Speaker 2>but really do not worry about it. These creatures have

0:25:28.000 --> 0:25:31.159
<v Speaker 2>an agenda, and that agenda does not include sucking your blood,

0:25:31.560 --> 0:25:35.280
<v Speaker 2>destroying your crops, landing Well, they may land on your baby,

0:25:35.280 --> 0:25:37.959
<v Speaker 2>but they don't care about your baby, and they're definitely

0:25:38.040 --> 0:25:39.720
<v Speaker 2>not interested in laying eggs and skulls.

0:25:40.359 --> 0:25:43.520
<v Speaker 3>I can very well imagine a scenario that easily leads

0:25:43.520 --> 0:25:46.080
<v Speaker 3>to the misconception that they sting babies, which is that

0:25:46.200 --> 0:25:49.320
<v Speaker 3>like if you've got a kid and like an insect

0:25:49.359 --> 0:25:51.800
<v Speaker 3>flies up in lands on them. The child might become

0:25:52.359 --> 0:25:55.240
<v Speaker 3>scared and start crying, and then it flies away, and

0:25:55.240 --> 0:25:58.160
<v Speaker 3>then you think they're crying because they're in pain. It's

0:25:58.160 --> 0:25:58.720
<v Speaker 3>stung them.

0:25:59.119 --> 0:26:02.960
<v Speaker 2>Yeah, Or an insect landed on your child and you're

0:26:03.000 --> 0:26:05.960
<v Speaker 2>overly protective, as many of his parents are, and you're like,

0:26:05.960 --> 0:26:08.439
<v Speaker 2>oh goodness, then you rush forward and you create the

0:26:08.480 --> 0:26:10.400
<v Speaker 2>incident of fear and so forth.

0:26:10.720 --> 0:26:12.880
<v Speaker 3>Yeah. Oh, but I did want to mention one thing

0:26:13.480 --> 0:26:17.480
<v Speaker 3>that I thought was interesting that cicadas. Of course, they

0:26:17.480 --> 0:26:20.879
<v Speaker 3>do not bite, they do not sting. It seems exceedingly rare.

0:26:21.359 --> 0:26:24.239
<v Speaker 3>If they ever even really poke people. That seems to

0:26:24.280 --> 0:26:27.520
<v Speaker 3>not happen much. If it happens at all, so you

0:26:27.520 --> 0:26:30.760
<v Speaker 3>don't have to worry about that. But they might possibly

0:26:30.840 --> 0:26:36.760
<v Speaker 3>pee on you and the p The nature of the

0:26:37.320 --> 0:26:41.639
<v Speaker 3>cicada urination is quite alarming actually if you see it,

0:26:41.760 --> 0:26:45.320
<v Speaker 3>because it doesn't look like what you imagine insect urination

0:26:45.440 --> 0:26:48.600
<v Speaker 3>would be, and in fact it's not very consistent with

0:26:48.680 --> 0:26:53.520
<v Speaker 3>what pre existing models before just recently would have predicted

0:26:53.600 --> 0:26:57.000
<v Speaker 3>of an insect like them. Because cicadas are insects and

0:26:57.040 --> 0:26:59.800
<v Speaker 3>they are xylum feeders. They live by sucking xylum from

0:26:59.840 --> 0:27:04.399
<v Speaker 3>plants and creatures with these characteristics. The little insects and

0:27:04.520 --> 0:27:11.280
<v Speaker 3>xylum feeders were pretty much thought to excrete by creating

0:27:11.320 --> 0:27:15.119
<v Speaker 3>little droplets that they shake off essentially, And this is

0:27:15.240 --> 0:27:20.200
<v Speaker 3>due to how fluid dynamics work at small scales. You know,

0:27:20.240 --> 0:27:21.880
<v Speaker 3>We've talked about this a lot on the show because

0:27:21.920 --> 0:27:24.840
<v Speaker 3>of that essay. I love bringing up the on being

0:27:24.880 --> 0:27:27.480
<v Speaker 3>the right size, you know, or like the way that

0:27:27.520 --> 0:27:31.520
<v Speaker 3>your body interacts with water is very different if you

0:27:31.600 --> 0:27:35.000
<v Speaker 3>are very small, Like the surface tension of water becomes

0:27:35.000 --> 0:27:38.600
<v Speaker 3>a much more powerful and dangerous force to deal with

0:27:38.640 --> 0:27:41.960
<v Speaker 3>in everyday life if you're very small. And it's also

0:27:42.000 --> 0:27:45.159
<v Speaker 3>true that water flows differently at very small scales. So

0:27:45.480 --> 0:27:47.639
<v Speaker 3>you know, larger mammals tend to produce a kind of

0:27:47.760 --> 0:27:50.119
<v Speaker 3>stream of urine that goes out of the body. But

0:27:50.520 --> 0:27:53.320
<v Speaker 3>when you get down to smaller and smaller animals, what

0:27:53.480 --> 0:27:57.199
<v Speaker 3>tends to happen is that they just kind of like

0:27:57.840 --> 0:28:01.840
<v Speaker 3>do a weak, little kind of emission of droplets that

0:28:01.920 --> 0:28:04.520
<v Speaker 3>they might shake off of the body somehow. But I

0:28:04.560 --> 0:28:07.400
<v Speaker 3>was reading about new research published just this year in

0:28:07.840 --> 0:28:10.720
<v Speaker 3>March twenty twenty four in p and As by L.

0:28:10.760 --> 0:28:15.000
<v Speaker 3>Eoj Chalita and M. Sad Bombla, and the paper was

0:28:15.000 --> 0:28:20.120
<v Speaker 3>called Unifying Fluidic Excretion across life from Cicadas to Elephants.

0:28:21.119 --> 0:28:24.640
<v Speaker 3>And so the authors write in their abstract, can insects

0:28:24.720 --> 0:28:28.680
<v Speaker 3>weighing mirror grams challenge our current understanding of fluid dynamics

0:28:28.680 --> 0:28:33.880
<v Speaker 3>in urination jetting fluids like the larger their larger mammalian counterparts.

0:28:34.359 --> 0:28:37.920
<v Speaker 3>And the answer is yes, Yes, Insects can create jets

0:28:37.960 --> 0:28:40.640
<v Speaker 3>just like mammals do. You don't often see it, but

0:28:41.040 --> 0:28:44.440
<v Speaker 3>cicadas can do this. And they got some video footage

0:28:44.480 --> 0:28:47.600
<v Speaker 3>of this, and they studied how the water, how the

0:28:48.080 --> 0:28:51.640
<v Speaker 3>excretion flows out of the cicadas. I would recommend looking

0:28:51.720 --> 0:28:54.680
<v Speaker 3>up video of cicadas peeing because, as I said earlier,

0:28:54.720 --> 0:28:56.080
<v Speaker 3>it's it looks alarming.

0:28:56.680 --> 0:29:00.880
<v Speaker 2>Yeah it is. It's not the medicine dropper scenario we

0:29:00.880 --> 0:29:03.480
<v Speaker 2>were just talking about. It is, well, what you might

0:29:03.520 --> 0:29:05.800
<v Speaker 2>call a proper leak that these cicadas are taking.

0:29:06.000 --> 0:29:09.400
<v Speaker 3>Yeah, yeah, it's jetting out. And so they talk about

0:29:09.440 --> 0:29:13.880
<v Speaker 3>a previous urination model where it was assumed that jetting

0:29:14.000 --> 0:29:18.760
<v Speaker 3>was basically limited to animals over three kilograms in body

0:29:18.800 --> 0:29:22.960
<v Speaker 3>mass because of just because of how fluids flow, and

0:29:23.080 --> 0:29:25.320
<v Speaker 3>that it's hard to create a jet if you're smaller.

0:29:25.600 --> 0:29:28.960
<v Speaker 3>They say, it's owing to viscous and surface tension constraints

0:29:28.960 --> 0:29:32.120
<v Speaker 3>at microscales like I was talking about. You know, water

0:29:32.200 --> 0:29:36.800
<v Speaker 3>flows differently, liquids flow differently at smaller scales. But they say, quote,

0:29:36.880 --> 0:29:41.040
<v Speaker 3>our findings defied this paradigm by demonstrating that cicadas weighing

0:29:41.160 --> 0:29:45.320
<v Speaker 3>just two grams possess the capability for jetting fluids through

0:29:45.360 --> 0:29:50.400
<v Speaker 3>remarkably small orifices. Using dimensional analysis, we introduce a unifying

0:29:50.440 --> 0:29:54.959
<v Speaker 3>fluid dynamic scaling framework that accommodates a broad range of taxa,

0:29:55.040 --> 0:30:00.680
<v Speaker 3>from surface tension dominated insects to inertia and gravity reliant mammals.

0:30:01.640 --> 0:30:03.920
<v Speaker 3>And then they go on to say, as we often

0:30:03.960 --> 0:30:05.960
<v Speaker 3>get in studies like this, they go on to say,

0:30:06.000 --> 0:30:08.760
<v Speaker 3>you know, this could be useful in designing better nozzles

0:30:08.800 --> 0:30:11.560
<v Speaker 3>for you know, like tiny robots and machines that need

0:30:11.600 --> 0:30:15.800
<v Speaker 3>to jet things out at a micro scale. So maybe

0:30:15.800 --> 0:30:18.640
<v Speaker 3>one day, maybe one day, some medical technology, like a

0:30:18.640 --> 0:30:22.200
<v Speaker 3>little robot that swims inside your body and jets around,

0:30:22.520 --> 0:30:25.240
<v Speaker 3>you know, needs to like squirt a jet of something

0:30:26.120 --> 0:30:29.680
<v Speaker 3>inside your body, will be based on the design of

0:30:29.760 --> 0:30:32.960
<v Speaker 3>a cicada's weird, kind of alarming urination.

0:30:33.680 --> 0:30:36.840
<v Speaker 2>I'll be very surprised if this study doesn't win an

0:30:36.880 --> 0:30:40.200
<v Speaker 2>ig Nobel Prize this year. Yes, you know, yeah, because

0:30:40.240 --> 0:30:43.120
<v Speaker 2>you have the cicada emergence is happening anyway. Cicadas are

0:30:43.120 --> 0:30:47.240
<v Speaker 2>in the public mindset, so yeah, this seems like this

0:30:47.320 --> 0:30:49.960
<v Speaker 2>is a this is a shoehorn for the Biology Prize

0:30:50.080 --> 0:30:51.719
<v Speaker 2>or I don't know what one of the other prizes

0:30:51.720 --> 0:30:54.320
<v Speaker 2>would probably work as well, but surely biology.

0:30:54.600 --> 0:30:57.320
<v Speaker 3>It's possible. We'll be back on this study later this year.

0:30:57.640 --> 0:31:11.200
<v Speaker 2>Yes, all right, Now, for the remainder of this episode,

0:31:11.360 --> 0:31:15.840
<v Speaker 2>I wanted to get back into the whole classification of broods.

0:31:16.280 --> 0:31:18.640
<v Speaker 2>You know, we're talking about brood X and so forth.

0:31:19.000 --> 0:31:21.440
<v Speaker 2>In the last episode, we talked about the evolution of

0:31:21.440 --> 0:31:25.440
<v Speaker 2>periodical cicadas and why they do this, but we didn't

0:31:25.680 --> 0:31:28.320
<v Speaker 2>really get into the amazing way this really shakes out

0:31:28.320 --> 0:31:31.280
<v Speaker 2>in terms of different broods or the history of how

0:31:31.320 --> 0:31:33.480
<v Speaker 2>we got to this point.

0:31:33.200 --> 0:31:36.640
<v Speaker 3>Right, because when we talk about these periodical emergencies, we've

0:31:36.720 --> 0:31:40.440
<v Speaker 3>tried to mention this a few times already as we

0:31:40.480 --> 0:31:43.480
<v Speaker 3>go along, but it's not like the thirteen year or

0:31:43.480 --> 0:31:47.080
<v Speaker 3>seventeen year cicadas all come out at once. It's like

0:31:47.160 --> 0:31:51.600
<v Speaker 3>every thirteen years, they're all there. We have different local

0:31:51.840 --> 0:31:55.920
<v Speaker 3>populations referred to as broods that are on the same

0:31:56.000 --> 0:31:57.320
<v Speaker 3>time schedule.

0:31:57.280 --> 0:31:59.880
<v Speaker 2>Right right, based on their geographical area and the year

0:32:00.040 --> 0:32:03.960
<v Speaker 2>they emerge. And basically all of this our understanding of

0:32:04.000 --> 0:32:09.000
<v Speaker 2>this and our brood classification of periodical cicadas, it traces

0:32:09.040 --> 0:32:13.760
<v Speaker 2>back to the work of American entomologist Charles Lester Marlott,

0:32:13.960 --> 0:32:18.880
<v Speaker 2>who lived eighteen sixty three through nineteen fifty four. Kansas born,

0:32:19.320 --> 0:32:23.760
<v Speaker 2>KSU educated, he was an entomologist who worked most of

0:32:23.760 --> 0:32:26.520
<v Speaker 2>his career. I believe he was a USDA researcher, and

0:32:26.600 --> 0:32:29.280
<v Speaker 2>I was reading about him in the Legacy of Charles

0:32:29.320 --> 0:32:33.720
<v Speaker 2>Marlott and Efforts to Limit Plant Pest Invasions by Leibhold

0:32:33.760 --> 0:32:38.080
<v Speaker 2>et al. Published in the journal American Entomologist in twenty sixteen.

0:32:38.480 --> 0:32:40.480
<v Speaker 2>So he's a pretty interesting fellow. A lot of his

0:32:40.560 --> 0:32:44.160
<v Speaker 2>work for the USDA centered around the control of agricultural

0:32:44.240 --> 0:32:49.280
<v Speaker 2>pest insects, with a focus on invasive threats. The article

0:32:49.920 --> 0:32:52.960
<v Speaker 2>mentions that in nineteen oh one and nineteen oh two

0:32:53.960 --> 0:32:57.760
<v Speaker 2>Marlott and his wife went on honeymoon in China in Japan,

0:32:58.520 --> 0:33:00.160
<v Speaker 2>which again nineteen oh one.

0:33:00.160 --> 0:33:00.840
<v Speaker 3>You know too, this is a.

0:33:00.760 --> 0:33:05.160
<v Speaker 2>Pretty adventurous vacation. That's a pretty adventerous honeymoon. You know

0:33:05.240 --> 0:33:09.479
<v Speaker 2>that we had to get there by ship and just

0:33:09.520 --> 0:33:12.840
<v Speaker 2>more of an undertaking compared to today. But while there,

0:33:12.840 --> 0:33:15.280
<v Speaker 2>it also gave him a chance to check out the

0:33:15.400 --> 0:33:20.800
<v Speaker 2>native range of a particular invasive pest insect known as

0:33:20.880 --> 0:33:24.480
<v Speaker 2>the San Jose scale, or it was known it was

0:33:24.560 --> 0:33:26.600
<v Speaker 2>known in the US at the time. It's the San

0:33:26.720 --> 0:33:30.680
<v Speaker 2>Jose scale. Uh, this being a creature that was a

0:33:30.720 --> 0:33:34.400
<v Speaker 2>big problem at this point in California. But it was

0:33:34.440 --> 0:33:38.880
<v Speaker 2>originally native to Siberia, northeast China, and I believe parts

0:33:38.880 --> 0:33:42.280
<v Speaker 2>of the Korean Peninsula. I believe it has since spread

0:33:42.840 --> 0:33:46.320
<v Speaker 2>to various places, not just you know, to to North America.

0:33:47.280 --> 0:33:50.360
<v Speaker 2>But so anyway, this this vacation, this honeymoon, gave him

0:33:50.360 --> 0:33:55.640
<v Speaker 2>a chance to investigate this organism's natural environment, to make

0:33:55.760 --> 0:33:59.280
<v Speaker 2>note of its natural predators, and even bring back specimens,

0:33:59.840 --> 0:34:01.880
<v Speaker 2>and all of this at his own personal expense. That's

0:34:01.960 --> 0:34:06.680
<v Speaker 2>just how devoted an entomologist he was. And this kind

0:34:06.720 --> 0:34:09.120
<v Speaker 2>of line of work would ultimately lead to the introduction

0:34:09.400 --> 0:34:13.160
<v Speaker 2>of the Italian ladybird beetle or lady bug, though it's

0:34:13.239 --> 0:34:19.600
<v Speaker 2>not a true bug, the particular species being Chillcorus similis.

0:34:19.760 --> 0:34:26.120
<v Speaker 2>This is the red spotted ladybird, so Charles Marlott would

0:34:26.280 --> 0:34:29.719
<v Speaker 2>be the individual to orchestrate it being introduced to North

0:34:29.760 --> 0:34:33.080
<v Speaker 2>America in order to combat the San Jose scale threat.

0:34:33.560 --> 0:34:36.239
<v Speaker 3>Weird. I just looked up the red spotted ladybird and

0:34:36.680 --> 0:34:39.560
<v Speaker 3>if it is the thing, I've found it looks like

0:34:39.600 --> 0:34:41.719
<v Speaker 3>an inversion of a ladybug.

0:34:42.239 --> 0:34:45.840
<v Speaker 2>Yeah yeah, so you know, not to be confused with

0:34:45.880 --> 0:34:52.239
<v Speaker 2>various other ladybirds and related insects. But this is interesting though,

0:34:52.239 --> 0:34:54.680
<v Speaker 2>because he was in this effort, he was very much

0:34:54.680 --> 0:35:01.520
<v Speaker 2>a pioneer of biocontrol, introducing species to another species that

0:35:01.560 --> 0:35:05.560
<v Speaker 2>has already been introduced into an area. Again, as we've

0:35:05.560 --> 0:35:07.360
<v Speaker 2>discussed in the show before, though, this of course is

0:35:07.360 --> 0:35:10.560
<v Speaker 2>a very delicate balancing act and one that especially now,

0:35:10.600 --> 0:35:13.880
<v Speaker 2>we do not engage in willy nilly. There are all

0:35:13.920 --> 0:35:15.759
<v Speaker 2>sorts of things that can go wrong and do go

0:35:15.840 --> 0:35:19.600
<v Speaker 2>wrong when we attempt to write a previous wrong.

0:35:20.040 --> 0:35:22.680
<v Speaker 3>Yeah, google cane toads in Australia if you want to

0:35:22.680 --> 0:35:23.840
<v Speaker 3>see how this can go wrong.

0:35:24.239 --> 0:35:26.960
<v Speaker 2>Now, this honeymoon to Japan and China that Marlott and

0:35:26.960 --> 0:35:29.840
<v Speaker 2>his wife went on. It ends up taking a tragic

0:35:29.960 --> 0:35:33.799
<v Speaker 2>turn because during his travels in Asia, his wife contracted

0:35:34.120 --> 0:35:37.200
<v Speaker 2>some unknown illness. I don't know that. I didn't even

0:35:37.280 --> 0:35:40.279
<v Speaker 2>run across any suspicions of what it might have been,

0:35:40.360 --> 0:35:43.160
<v Speaker 2>but she caught some sort of unknown illness ultimately died

0:35:43.200 --> 0:35:46.640
<v Speaker 2>from it, and the authors of this paper add that quote.

0:35:46.800 --> 0:35:50.440
<v Speaker 2>This experience no doubt shaped Marlott's thinking and perhaps contributed

0:35:50.600 --> 0:35:54.440
<v Speaker 2>to his strong concern about the dangers of accidentally importing

0:35:54.480 --> 0:35:58.640
<v Speaker 2>species from overseas. So again, his wife seemingly caught some

0:35:58.680 --> 0:36:02.440
<v Speaker 2>sort of a pathogen, and Marlott his work dealt with

0:36:02.480 --> 0:36:07.360
<v Speaker 2>agricultural pests. But you could see how this could intensify

0:36:07.640 --> 0:36:14.120
<v Speaker 2>his already pre existing concern about pest organisms from other

0:36:14.560 --> 0:36:20.640
<v Speaker 2>ecosystems being introduced into North America. And indeed, Marlott became

0:36:20.880 --> 0:36:24.160
<v Speaker 2>very concerned about the threat of invasive organisms that had

0:36:24.200 --> 0:36:27.440
<v Speaker 2>already entered the US through soil and trade, as well

0:36:27.480 --> 0:36:32.000
<v Speaker 2>as the potential for future invasive exposures. He was key

0:36:32.040 --> 0:36:35.879
<v Speaker 2>in urging Congress to enact plant quarantine legislation to help

0:36:35.920 --> 0:36:39.480
<v Speaker 2>deal with this threat, and I was The article gets

0:36:39.480 --> 0:36:42.360
<v Speaker 2>into it here. It was a pretty polarizing topic because

0:36:42.520 --> 0:36:44.960
<v Speaker 2>on one hand, you had plenty of people who are

0:36:44.960 --> 0:36:47.480
<v Speaker 2>already like thinkers on this. You know, they could point

0:36:47.520 --> 0:36:53.840
<v Speaker 2>directly at problems with invasive pests in agriculture in North America,

0:36:53.960 --> 0:36:56.320
<v Speaker 2>like with the San Jose scale, and say, yeah, this

0:36:56.880 --> 0:36:59.680
<v Speaker 2>is terrible. We need to combat this and figure out

0:36:59.680 --> 0:37:01.799
<v Speaker 2>ways to prevent it from happening. But on the other hand,

0:37:02.280 --> 0:37:04.560
<v Speaker 2>you had individuals who were saying, no, no, no, no,

0:37:04.600 --> 0:37:07.520
<v Speaker 2>you can't stand in the way of free trade. You

0:37:07.560 --> 0:37:11.239
<v Speaker 2>can't get in the way of American horticulture because it

0:37:11.280 --> 0:37:14.680
<v Speaker 2>depends on introducing plant species from around the world, and

0:37:14.719 --> 0:37:16.560
<v Speaker 2>you just need to stand back and let us do it.

0:37:17.680 --> 0:37:21.360
<v Speaker 2>And so we end up with another really interesting and

0:37:21.520 --> 0:37:25.560
<v Speaker 2>very newsy and political situation that occurs. And none of

0:37:25.560 --> 0:37:28.440
<v Speaker 2>this involves cicadas, but I thought it was too fascinating.

0:37:28.440 --> 0:37:32.719
<v Speaker 2>It all concerns Marlin, so I do want to go

0:37:32.800 --> 0:37:36.359
<v Speaker 2>into it, at least briefly. Here Basically, what happens is

0:37:37.040 --> 0:37:41.960
<v Speaker 2>in the year nineteen oh nine, you have a number

0:37:42.000 --> 0:37:45.399
<v Speaker 2>of cherry trees, some two thousand cherry trees that are

0:37:45.480 --> 0:37:50.080
<v Speaker 2>gifted from Japan to the United States. It's a gift

0:37:50.120 --> 0:37:51.960
<v Speaker 2>that involved. Basically, there's kind of like a back and

0:37:51.960 --> 0:37:55.760
<v Speaker 2>forth between a prominent Japanese chemist of the time, doctor

0:37:55.920 --> 0:38:00.319
<v Speaker 2>Takamini Jokichi, and the first lady of the time Hell

0:38:00.400 --> 0:38:04.040
<v Speaker 2>and heron taft. So you know, she'd expressed interest in

0:38:04.080 --> 0:38:08.640
<v Speaker 2>the cherry trees of Japan, and the good doctor Here's like, well, yeah,

0:38:08.640 --> 0:38:11.640
<v Speaker 2>I've got some connections here, and lo and behold, now

0:38:11.640 --> 0:38:14.280
<v Speaker 2>we get a state offering of two thousand cherry trees.

0:38:14.719 --> 0:38:17.480
<v Speaker 2>They are sent on their way across the ocean, and

0:38:17.520 --> 0:38:20.120
<v Speaker 2>then they're put on a train and travel across the

0:38:20.160 --> 0:38:24.480
<v Speaker 2>continent to Washington, d c. M. And this is where

0:38:24.520 --> 0:38:27.799
<v Speaker 2>Marlott enters the picture, because a USDA team led by

0:38:27.880 --> 0:38:32.040
<v Speaker 2>him ends up inspecting the trees and he's like, instantly

0:38:32.120 --> 0:38:35.120
<v Speaker 2>he pulls a total ripley on all of this. He's like, no, no, no, no,

0:38:35.400 --> 0:38:39.200
<v Speaker 2>you cannot do this, Like we just checked. These things

0:38:39.239 --> 0:38:42.040
<v Speaker 2>are infested, they have scale insects, they have root gall

0:38:43.080 --> 0:38:45.359
<v Speaker 2>What we need to do is just burn them all.

0:38:45.719 --> 0:38:48.600
<v Speaker 3>Oh no, I mean I understand the reasoning there, and

0:38:48.640 --> 0:38:50.960
<v Speaker 3>that makes sense, but it's like it was a gift,

0:38:51.320 --> 0:38:53.120
<v Speaker 3>you know, it's just like, oh that sucks.

0:38:53.560 --> 0:38:56.799
<v Speaker 2>Yeah, yeah, so they didn't burn it right away, Like

0:38:56.840 --> 0:38:59.319
<v Speaker 2>basically this had to travel up the pole, and I

0:38:59.320 --> 0:39:02.480
<v Speaker 2>believe President Taft himself had to give the authorization, but

0:39:02.600 --> 0:39:06.240
<v Speaker 2>that within a month all these trees were burned. And

0:39:06.280 --> 0:39:08.839
<v Speaker 2>I guess the upside here is that, first of all,

0:39:08.880 --> 0:39:12.640
<v Speaker 2>Agricultural Secretary James Wilson and his staff followed this up

0:39:12.640 --> 0:39:16.319
<v Speaker 2>with a strong push, using scientific evidence to seek a

0:39:16.400 --> 0:39:19.640
<v Speaker 2>national plant quarantine law. So thirty nine states had already

0:39:19.719 --> 0:39:23.160
<v Speaker 2>passed such laws, but with this they were able to

0:39:23.400 --> 0:39:27.680
<v Speaker 2>roll out the Plant Quarantine Act of nineteen twelve, which

0:39:27.719 --> 0:39:31.840
<v Speaker 2>went into effect August twentieth, nineteen twelve, and the establishment

0:39:31.880 --> 0:39:35.520
<v Speaker 2>of the Federal Horticultural Board, and also you know future

0:39:35.560 --> 0:39:38.640
<v Speaker 2>plant quarantine efforts, so you know, they're able to spin

0:39:38.719 --> 0:39:43.280
<v Speaker 2>it off and do some additional good, you know, broader

0:39:43.360 --> 0:39:46.319
<v Speaker 2>good outside of you know, state offerings of gifts. And

0:39:46.360 --> 0:39:48.040
<v Speaker 2>there's even I guess a happy ending to the whole

0:39:48.480 --> 0:39:52.680
<v Speaker 2>cherry tree gift tobacco here as well, because Japan ended

0:39:52.719 --> 0:39:58.000
<v Speaker 2>up offering replacements. These were fumigated before shipment, and ultimately

0:39:58.040 --> 0:40:00.239
<v Speaker 2>the first lady and the wife of the jap these

0:40:00.239 --> 0:40:03.400
<v Speaker 2>ambassador like oversaw the planting of these trees, and the

0:40:03.480 --> 0:40:06.840
<v Speaker 2>Washington d c. Cherry trees remain in iconic aspect of

0:40:06.880 --> 0:40:09.719
<v Speaker 2>the nation's capital. Anyway, none of that involves cicadas, but

0:40:09.719 --> 0:40:12.360
<v Speaker 2>it all involves Charles Lester Marlott. So I thought we'd

0:40:12.440 --> 0:40:17.120
<v Speaker 2>mention it. But if invasive pests were Charles Lester Marlott's

0:40:17.560 --> 0:40:22.160
<v Speaker 2>hated foes, his best friends, his most beloved insects were,

0:40:22.200 --> 0:40:27.240
<v Speaker 2>without a doubt, periodical cicadas. He studied them, immensely, published

0:40:27.239 --> 0:40:30.319
<v Speaker 2>about them. He loved them so much that when he

0:40:30.360 --> 0:40:34.120
<v Speaker 2>had a house built in Washington, d C. This mansion,

0:40:34.200 --> 0:40:37.920
<v Speaker 2>this big brick mansion, he had cicadas carved into various

0:40:37.960 --> 0:40:42.400
<v Speaker 2>features of the home. Huh. And the paper here includes

0:40:42.440 --> 0:40:46.040
<v Speaker 2>some images. I've included them here for you to look at, Joe.

0:40:46.080 --> 0:40:49.520
<v Speaker 2>This home apparently still is still around it currently, I

0:40:49.520 --> 0:40:53.960
<v Speaker 2>believe houses the Institute of World Politics. I intentionally did

0:40:54.040 --> 0:40:56.200
<v Speaker 2>not look them up. I don't know what their world

0:40:56.239 --> 0:40:59.200
<v Speaker 2>politics happened to be, and I'm going to remain blissfully

0:40:59.280 --> 0:41:02.879
<v Speaker 2>ignorant of whatever they are. But it is my understanding

0:41:03.000 --> 0:41:05.600
<v Speaker 2>that the cicadas are still there, like on the banisters

0:41:05.640 --> 0:41:07.320
<v Speaker 2>of the staircases and so forth.

0:41:07.600 --> 0:41:10.239
<v Speaker 3>Uh, huh, it's a beautiful house whatever they're doing in there.

0:41:10.400 --> 0:41:14.239
<v Speaker 2>Yeah, but yeah, he was a key figure in our

0:41:14.640 --> 0:41:18.799
<v Speaker 2>understanding and our study of periodical cicadas. He contributed to

0:41:19.080 --> 0:41:23.200
<v Speaker 2>the taxonomic study of them, outlined the thirty hypothesized broods

0:41:23.400 --> 0:41:26.839
<v Speaker 2>of periodical cicadas in North America. His nineteen oh seven

0:41:26.880 --> 0:41:30.560
<v Speaker 2>book The Periodical Cicada laid everything out to signing Roman numerals,

0:41:30.880 --> 0:41:34.080
<v Speaker 2>covering all thirteen years of the thirteen periodical cicadas and

0:41:34.120 --> 0:41:37.600
<v Speaker 2>all seventeen of the seventeen periodical cicadas for a grand

0:41:37.640 --> 0:41:38.480
<v Speaker 2>total of thirty.

0:41:39.040 --> 0:41:41.640
<v Speaker 3>That's interesting. So you know, if you go back to

0:41:41.719 --> 0:41:45.040
<v Speaker 3>these articles that I was talking about from the New

0:41:45.120 --> 0:41:49.080
<v Speaker 3>York Times in the nineteenth century, some people were already

0:41:49.160 --> 0:41:53.440
<v Speaker 3>aware that there were like some local emergences that happened

0:41:53.440 --> 0:41:56.560
<v Speaker 3>on seventeen year cycles. But so there was some knowledge,

0:41:56.560 --> 0:41:59.400
<v Speaker 3>but I guess they didn't know. They didn't have worked

0:41:59.400 --> 0:42:02.399
<v Speaker 3>out like what all the broods were and where all

0:42:02.440 --> 0:42:02.960
<v Speaker 3>of them.

0:42:02.760 --> 0:42:05.640
<v Speaker 2>Were, right. Yeah, you look at details from his work,

0:42:05.719 --> 0:42:09.680
<v Speaker 2>which was extensive, like he's making maps, you know, pinpointing

0:42:09.719 --> 0:42:13.640
<v Speaker 2>them like this guy went hard on periodical cicadas and

0:42:13.800 --> 0:42:17.279
<v Speaker 2>as such, like anything you read about periodical cicadas. You

0:42:17.320 --> 0:42:21.320
<v Speaker 2>will invariably see his work sided like there'll be Marlett

0:42:21.920 --> 0:42:25.160
<v Speaker 2>down There often multiple Marlet publications that are cited. I mean,

0:42:25.160 --> 0:42:28.960
<v Speaker 2>his work was just foundational. Gene Kritsky, of course, cites

0:42:29.000 --> 0:42:32.520
<v Speaker 2>him numerous times in a Tale of Two Broods, saying quote,

0:42:32.640 --> 0:42:35.880
<v Speaker 2>he designated the seventeen year cicadas that emerged in eighteen

0:42:35.960 --> 0:42:39.040
<v Speaker 2>ninety three as brood one. The cicadas that emerged in

0:42:39.080 --> 0:42:42.080
<v Speaker 2>eighteen ninety four were called brood two. The cicadas emerging

0:42:42.080 --> 0:42:44.040
<v Speaker 2>in eighteen ninety five were to be called brood three,

0:42:44.360 --> 0:42:48.440
<v Speaker 2>and so on. And then he adds for just to

0:42:48.520 --> 0:42:51.400
<v Speaker 2>drive everything at home, he says, quote, Marlott's system greatly

0:42:51.440 --> 0:42:55.000
<v Speaker 2>reduced the confusion surrounding the study of periodical cicadas, and

0:42:55.080 --> 0:42:58.080
<v Speaker 2>it has stood the test of time. It was particularly

0:42:58.080 --> 0:43:01.600
<v Speaker 2>helpful in areas where there were overlapping broods, enabling observers

0:43:01.719 --> 0:43:06.000
<v Speaker 2>to determine precisely where and when cicadas would again emerge.

0:43:06.560 --> 0:43:08.400
<v Speaker 3>And as far as I can tell, our systems for

0:43:08.560 --> 0:43:11.560
<v Speaker 3>predicting these brood emergencies have been pretty reliable.

0:43:12.200 --> 0:43:15.239
<v Speaker 2>Yeah. Yeah, Now, you know, some things didn't quite shake out,

0:43:15.320 --> 0:43:17.200
<v Speaker 2>So you know, it turns out like we don't have

0:43:17.239 --> 0:43:19.960
<v Speaker 2>a full thirty broods. I think it's more like fifteen. Right,

0:43:20.880 --> 0:43:23.120
<v Speaker 2>Some years might not have produced a brood. And we

0:43:23.160 --> 0:43:26.399
<v Speaker 2>know that some broods were in decline when Marlott studied them,

0:43:26.680 --> 0:43:30.000
<v Speaker 2>and some have seemingly gone extinct. So for instance, there

0:43:30.040 --> 0:43:32.640
<v Speaker 2>is a brood twenty three, but not a twenty four

0:43:33.440 --> 0:43:36.360
<v Speaker 2>breod twenty one native to the Florida Panhandle when extinct

0:43:36.440 --> 0:43:40.719
<v Speaker 2>sometime after eighteen seventy. So you know that there have

0:43:40.840 --> 0:43:43.400
<v Speaker 2>been changes. And also it does drive home that you know,

0:43:44.040 --> 0:43:47.640
<v Speaker 2>even though when these broods emerge, it is just overwhelming

0:43:47.680 --> 0:43:50.239
<v Speaker 2>and it just seems like they're a juggernaut that can't

0:43:50.239 --> 0:43:53.480
<v Speaker 2>be stopped. They are vulnerable, you know, there are you know,

0:43:53.600 --> 0:43:58.399
<v Speaker 2>changes to their environment can impact them and they can

0:43:58.600 --> 0:44:03.400
<v Speaker 2>just go away forever. Now, you know, we can't go

0:44:03.440 --> 0:44:06.680
<v Speaker 2>into everything like again, I'll just summarize by saying Marlott

0:44:06.800 --> 0:44:10.359
<v Speaker 2>was the man of his time in laying out much

0:44:10.400 --> 0:44:14.239
<v Speaker 2>of the foundational work for our understanding of periodical cicadas.

0:44:14.280 --> 0:44:16.120
<v Speaker 2>But of course, given the time he was active, and

0:44:16.160 --> 0:44:20.000
<v Speaker 2>given just the pervasive superstitions around cicadas, he of course

0:44:20.160 --> 0:44:23.120
<v Speaker 2>also had to do a little myth busting here and

0:44:23.200 --> 0:44:27.120
<v Speaker 2>there concerning their you know, consumption of flesh and so forth.

0:44:28.040 --> 0:44:31.080
<v Speaker 2>So here's one more quote from gene Kritsky's A Tale

0:44:31.080 --> 0:44:35.120
<v Speaker 2>of Two Broods quote. Reports of periodical cicadas attempting to

0:44:35.200 --> 0:44:38.319
<v Speaker 2>lay eggs in humans popped up in several newspapers during

0:44:38.360 --> 0:44:42.920
<v Speaker 2>the nineteenth century. Marlott settled the question, writing, with every

0:44:43.000 --> 0:44:46.320
<v Speaker 2>general outbreak of this insect our associated accounts in local

0:44:46.360 --> 0:44:49.840
<v Speaker 2>papers of its stinging human beings, the sting often resulting,

0:44:49.960 --> 0:44:53.360
<v Speaker 2>it is stated more or less seriously to the person stung.

0:44:54.000 --> 0:44:57.160
<v Speaker 2>So far as investigation of the reports have been possible,

0:44:57.400 --> 0:45:00.480
<v Speaker 2>they have proved to be either utterly without fandebt foundation

0:45:01.000 --> 0:45:05.439
<v Speaker 2>or much exaggerated. So nothing that nothing that we haven't

0:45:05.480 --> 0:45:09.560
<v Speaker 2>already covered, and that that scientists aren't having to again

0:45:09.800 --> 0:45:13.319
<v Speaker 2>reiterate for the public. But it's it's interesting that, yeah,

0:45:13.320 --> 0:45:16.400
<v Speaker 2>here's this guy who did so much work on cicadas,

0:45:16.640 --> 0:45:18.120
<v Speaker 2>but he would also have to chime in and just

0:45:18.120 --> 0:45:19.640
<v Speaker 2>say no, no, no, they are not going to drink

0:45:19.640 --> 0:45:21.480
<v Speaker 2>your blood. They're not going to lay eggs in your brain.

0:45:22.320 --> 0:45:25.520
<v Speaker 2>They ultimately don't care about you. You are not part

0:45:25.560 --> 0:45:28.440
<v Speaker 2>of the cicada agenda. All right, Well, we're going to

0:45:28.480 --> 0:45:30.640
<v Speaker 2>go ahead and close out this episode right there, but

0:45:30.800 --> 0:45:33.560
<v Speaker 2>we're going to return to the world of cicadas in

0:45:33.719 --> 0:45:35.719
<v Speaker 2>the next episode. There's still a lot we didn't get

0:45:35.719 --> 0:45:41.040
<v Speaker 2>to discuss. There are whole area's mythological yet to be

0:45:41.520 --> 0:45:43.880
<v Speaker 2>to be discussed here on the show. We haven't really

0:45:44.360 --> 0:45:47.920
<v Speaker 2>gotten into the culinary question of cicadas, so there's a

0:45:47.920 --> 0:45:50.759
<v Speaker 2>lot to discuss, and of course in the meantime, we

0:45:50.800 --> 0:45:54.200
<v Speaker 2>would love to hear from everyone out there. You undoubtedly

0:45:54.600 --> 0:45:59.360
<v Speaker 2>have experiences with cicadas, annual or periodical, and we would

0:45:59.360 --> 0:46:02.120
<v Speaker 2>like to hear about them. Do you fancy yourself a

0:46:02.120 --> 0:46:05.640
<v Speaker 2>cicada photographer? Oh, we'll send your photos. We will look

0:46:05.640 --> 0:46:08.839
<v Speaker 2>at them. Do you have any thoughts on cicada urination? Yes,

0:46:09.760 --> 0:46:11.879
<v Speaker 2>we want to know about that as well. And if

0:46:11.920 --> 0:46:15.000
<v Speaker 2>you have any second, third, fourth, fifth hand accounts of

0:46:15.120 --> 0:46:19.279
<v Speaker 2>cicada's biting people, sucking blood, or laying eggs and the skull, yes,

0:46:19.360 --> 0:46:21.839
<v Speaker 2>right in with that as well. We will of course

0:46:21.880 --> 0:46:25.000
<v Speaker 2>discuss that in future episodes of Listener. Made just a

0:46:25.000 --> 0:46:26.880
<v Speaker 2>reminder that Stuff to Blow Your Mind is primarily a

0:46:26.960 --> 0:46:31.200
<v Speaker 2>science and culture podcast, with core episodes publishing on Tuesdays

0:46:31.200 --> 0:46:34.160
<v Speaker 2>and Thursdays, listener mail on Monday's short form episode on

0:46:34.200 --> 0:46:36.720
<v Speaker 2>Wednesdays and on Fridays, we set aside most serious concerns

0:46:36.719 --> 0:46:39.719
<v Speaker 2>to just talk about a weird film on Weird House Cinema.

0:46:39.960 --> 0:46:43.680
<v Speaker 3>Huge thanks as always to our excellent audio producer JJ Posway.

0:46:44.040 --> 0:46:45.480
<v Speaker 3>If you would like to get in touch with us

0:46:45.480 --> 0:46:48.040
<v Speaker 3>with feedback on this episode or any other, to suggest

0:46:48.040 --> 0:46:50.280
<v Speaker 3>a topic for the future, or just to say hello,

0:46:50.640 --> 0:46:53.560
<v Speaker 3>you can email us at contact at stuff to Blow

0:46:53.560 --> 0:47:02.080
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0:47:02.200 --> 0:47:05.120
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