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Duration:07:01
Uploaded:2024-04-18
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Learn more bizarre facts (and how to properly cite your sources) with Study Hall! Take a college course that starts on YouTube and earn credit before you even apply to college. Go to https://link.gostudyhall.com/bb2 to learn more.

Welcome back to Bizarre Beasts: Season Zero, where we are remastering episodes of Bizarre Beasts that were originally created for Vlogbrothers. This episode, Hickory Horned Devils and Regal Moths! Meet the little critter with significant “brand power”.

Get the Season Zero pin set here: https://store.dftba.com/collections/bizarrebeasts/products/season-zero-pin-set

The Hickory Horned Devil and Regal Moth pins were designed by Sam Schultz. You can find out more about them and their work here: https://samschultz.squarespace.com/

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#BizarreBeasts #caterpillar
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Sources:
https://youtu.be/2zfNDvT28rU?si=8P4VyYmJiOe3Y2r0
https://entnemdept.ifas.ufl.edu/creatures/bfly/regal_moth.htm
https://www.butterfliesandmoths.org/species/Citheronia-regalis
https://the-caterpillar-lab.myshopify.com/products/hickory-horned-devil-regal-moth-lifecycle-poster
https://www.pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/ENTO/ENTO-20/ENTO-540.pdf
https://www.floridamuseum.ufl.edu/discover-butterflies/faq/#:~:text=Pupa%20and%20chrysalis%20have%20the,it%20turns%20into%20a%20pupa
https://extension.msstate.edu/newsletters/bug%E2%80%99s-eye-view/2023/hickory-horned-devil-vol-9-no-25
https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.114866/Citheronia_regalis
https://mdc.mo.gov/discover-nature/field-guide/regal-moth-royal-walnut-moth-hickory-horned-devil#:~:text=As%20winged%20adults%2C%20regal%20moths,regal%20moths%20do%20not%20eat
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Images:
https://flickr.com/photos/mhodge/1236683480/in/photolist-714Xt5-6ZZYcM-714XbS-6WcDcM-714WY3-8iWagE-GWUTyq-27HAgjX-2imogT6-vYXVaP-2jtekK-cD86ao-8veDhE-8vbA1e-2ThjUY-8vbATp-6osYiM-6osYgX-yUMmm7-yUWjET
https://tinyurl.com/36274a2w
https://tinyurl.com/yh675sp3
https://tinyurl.com/uyhfvjyd
https://tinyurl.com/3mzry8me
https://tinyurl.com/yxhykbu4
https://tinyurl.com/2nmprmhv
https://tinyurl.com/2a8yuh82
https://www.gettyimages.com/detail/photo/monarch-royalty-free-image/184621282?phrase=monarch+butterfly&adppopup=true
https://www.gettyimages.com/detail/photo/old-world-swallowtail-butterfly-on-a-white-royalty-free-image/180696110?phrase=Swallowtail+butterfly&adppopup=true
https://www.gettyimages.com/detail/photo/orange-plume-moth-14569-royalty-free-image/1905222713?phrase=plume+moth&adppopup=true
https://www.gettyimages.com/detail/photo/pine-hawk-moth-royalty-free-image/1461656838?phrase=miller+moths&adppopup=true
https://www.gettyimages.com/detail/photo/plebeius-argus-butterfly-on-a-leave-royalty-free-image/523996677?phrase=gossamer+winged+butterfly&adppopup=true
https://www.gettyimages.com/detail/photo/regal-moth-royalty-free-image/1489220373?phrase=regal+moth&searchscope=image%2Cfilm&adppopup=true
https://www.gettyimages.com/detail/photo/six-spot-brunet-on-the-flower-in-the-meadow-macro-royalty-free-image/1165676325?phrase=burnet+moths&adppopup=true
https://www.gettyimages.com/detail/photo/the-brown-dotted-clothes-moth-niditinea-fuscella-is-royalty-free-image/1357169348?phrase=Tineidae&adppopup=true
https://www.gettyimages.com/detail/photo/the-pyralidae-commonly-called-pyralid-moths-snout-royalty-free-image/1368376044?phrase=pyralidae+-+snout+moths&adppopup=true
https://www.gettyimages.com/detail/photo/tiger-grass-borer-moth-on-a-leaf-royalty-free-image/500957192?phrase=clearwing+moth&adppopup=true
https://www.gettyimages.com/detail/photo/tiny-moth-from-the-family-gelechiidae-commonly-royalty-free-image/1415037039?phrase=twirler+moths&adppopup=true
https://tinyurl.com/mt5t4554
https://tinyurl.com/ysusjmjn
https://tinyurl.com/4tc3ekbj
https://tinyurl.com/ya4rvcja
https://tinyurl.com/5hx9heyh
https://tinyurl.com/4ypu9xu7
https://tinyurl.com/4s6hrj54
https://tinyurl.com/43actshc
https://tinyurl.com/4bx73fjx
https://tinyurl.com/2v7zas7y
https://tinyurl.com/b6dn73j3
https://tinyurl.com/ydttu727
https://tinyurl.com/ydttu727
https://tinyurl.com/jud69wd5
https://tinyurl.com/bd6n7763
https://tinyurl.com/yhw2easn
https://tinyurl.com/bdcuef34
https://www.inaturalist.org/observations/122739811
https://www.inaturalist.org/observations/132731721
https://www.inaturalist.org/observations/13379444
https://www.inaturalist.org/observations/175078905
https://www.inaturalist.org/observations/176648261
https://www.inaturalist.org/observations/55539645
https://youtu.be/Cvbh34PXJ8c?si=GRfRZ7vJQl6krEav
https://youtu.be/GpqNZd5-hzw?si=WB_7dEIkIOZXH5QX
https://youtu.be/hOxaHDKTqXU?si=S3qVJUqs3f7h-ZaK
https://youtu.be/IZEGzWBkb00?si=rVNclgBnsxyJKAes
https://youtu.be/SmrtZ_0n4iI?si=e8xI0iEx6bAju71o
https://youtu.be/VjkSbTfIwnM?si=CsbA4s5hRPGF71Ud
Good morning John Welcome back to Bizarre

Beasts: Season Zero. Hank and I are trading off hosting duties on  our year-long journey to remaster the original   Bizarre Beasts episodes from V logbrothers  with corrections, updates, and new facts. Make sure you stick around  for the pin set announcement! You know how caterpillars become  butterflies- well that is a lie.

Any given caterpillar you spot honking its way  down the sidewalk, there’s a 90% chance that that   fresh little wiggler is incapable of becoming  a butterfly and instead it will become a moth. And John, moths: oh my God they’re so good. [♪Intro♪] “What precisely is a moth?” you ask. Well here’s where it gets a little bit messed  up because butterflies are like a thing- they're like they have a single common ancestor.

Moths are just anything that’s not a butterfly: any scale winged thing that  isn’t a butterfly- moth. Is it more closely related to some  butterflies than it is to some moths? Doesn’t matter- moth! and talk  about a branding problem right, "butterfly" is this beautiful word-  it spoonerises to "flutter by." And then moth- it sounds like the noise  you make when a moth flies into your mouth but moths, moths, moths, moths, moths.

We’re stuck with the name. Let’s just look at these beautiful creatures. And the one I want to talk to you  about today is mostly the regal moth.

Why: because of its caterpillar- The  Hickory Horned Devil- which looks like this. And, bonus fact: this chonky green  look is actually the fifth instar,   or developmental stage, of  this caterpillar’s life. The earlier instars tend to be mostly black,   with the later instars being  more orange-ish or brownish. At these stages, the young caterpillars  are spinier, and the spines on their   backs branch more than the spines on  the final hickory horned devil instar.

You will never forget this caterpillar   or probably its name ‘cause it has  got brand power- brand too strong. Now there are other Horned Devils out there. This is the largest of The Horned  Devils, it’s from South America.

But The Hickory with its blue body and  its red horns-why does it look this way? Well because it’s basically a hot  dog with legs- it’s very good eating. It looks fierce but it’s not; it can’t  sting, it can’t bite, it’s not venomous,   it’s not poisonous but it’s too big to hide  from raccoons and possums so its got to make   those fuzzy folk worry about their noseys and  toesies before grabbing on and taking a bite But lots of caterpillars don’t  become gigantic food bags.

In fact, the Hickory Horned Devil is  the largest Caterpillar in the US. So why is it so big? Because the Hickory Horned Devil has to consume  massive amounts of food because Saturniid moths,   which this is one of is over 1000 species of these  guys, do not have mouths once they become moths.

Once a Saturniid Caterpillar  pupates, it will never eat again. And so these caterpillars eat 2 to 3 times their own body weight in leaves everyday,   growing in size over 1000 times in the course of a month. They don’t even digest the  cellulose of these plants,   instead they basically juice  the leaves in their guts.

Just wanted to pause here and say we  couldn’t confirm the size change or the   leaf-juicing thing when the show’s fact  checker went back through this script. If you know where those facts came from,  please let us know in the comments! Time for another bonus fact: earlier,  we showed footage of a pupa that looked   like a big brown nut, but the footage  didn’t show where that pupa came from.

Now, you might be familiar with the  strangely beautiful chrysalises of   butterflies or the silky cocoons spun  by many moths around their pupae,   but hickory horned devils do  things a little differently. Instead of attaching themselves to  a twig or a leaf, these caterpillars   burrow into ground to pupate naked,  rather than spinning a cocoon. When males emerge from their chrysalis,  they fly sometimes for miles,   trying to sniff out a female with their  extremely sensitive, feathery antennae.

Their job is to locate the  female because the female’s   job is to use all of its energy  creating hundreds of very large eggs. The female Regal Moth does not fly  until it mates and if it does not mate,   it never flies- it just dies waiting. They have to mate and lay their eggs within the  7 days they have to live in their adult forms.

So, this is another spot where we  couldn’t find the source that Hank   used for the last two lines when  he originally made this video. What we did find was a reference that said that female Regal Moths have “genuine difficulty   even getting airborne,” probably  due to the weight of their eggs. So, it’s possible that they  can fly, if not well or far.

They may also live for more than 7 days as adults,   maybe even up to two weeks, but most  references just say “about a week.” The strategy of Regal Moths and other  Saturniidae is that the moth phase exists   only for meeting and breeding and to pull that  off, the Caterpillar needs to be successful   in storing fats and proteins before it  pupates and so it has to get big and   full of nutrients which makes it a perfect  snack so it has to look ridiculously fierce. Pretty much anything would see this juicy boy  and think “that is not worth the risk” which   is also how most people feel about them  even though they are completely harmless. Still be nice because they are a marvel  even if they are a little terrifying.

If you missed this critter the first time  around, our Season Zero pin sets are now available! This set includes all 12 of the animals we began this Bizarre Beasts journey with on   Vlogbrothers, including the Hickory  Horned Devil and the Regal Moth pins! The new versions are very glittery!

To get the Season Zero Pin set,  visit bizarrebeastsshow.com! If you enjoy learning on YouTube, why not get credit for it? With Study Hall, you can take college courses that start on YouTube for only $25 Here's how it works:

Watch the course content made by ASU and Crash Course on YouTube for free, then sign up for an online college course led by ASU faculty and apply what you've learned for just $25 If, at the end of the course, you're happy with the grade and want to add the college credit to your transcript pay an optional $400 fee.

That's about a third of the cost of a typical college course. Pick between common gen-ed college courses like Code and Programing, Human Communication, Modern World History, and more. Whether you're trying to learn new skills, earn college credit, or get experience taking a college course, Study Hall can help you reach your goals without risk.

Check out the link in the description or go to gostudyhall.com to learn more. [♪Outro♪]