All About Poop, Plus a Tortoise: SciShow Talk Show #15

The SciShow Talk Show has a new look! And a new guest who isn't new at all - Jessi Knudsen Castañeda from Animal Wonders joins Hank to talk about one of her favorite subjects: poop! They are joined by Augusto Castañeda and Yucca the red-footed tortoise for a visit.
Want more animals? Check out Animal Wonders Inc. at www.animalwonde... or on KZbin at / anmlwndrs
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[@Hashishin13]

Bug isn't a technical term when referring to anything creepy-crawly, that is just American slang. Bug is a technical term when referring to a group of insects known as the true bugs, which includes stink bugs, and i think leaf/tree hoppers as well.

[@graciie81]

I love that moment right before Hank signs off where everyone just stares lovingly/in awe of the animal brought it. It's just a really nice moment.

[@JoyThirsty3]

Pairs of legs per segment. Insects have three pairs on one segment. Arachnids, like ticks, have four pairs on one segment. Millipedes.... Crustaceans have five pairs! Crawfish, crabs, lobsters, shrimp, etc.

[@BossesDream]

Colloquially, both biologists and laypeople use the word "turtle" to mean all chelonians. In general, the reptiles referred to as turtles live in or near the water and have adapted to swim by holding their breath underwater. The reptiles referred to as tortoises typically live primarily in arid regions and are built for storing their own water supply and walking on sandy ground.

[@Unsensitive]

Bugs: Insects of the order Hemiptera, meaning half wing. Easily recognizable by their outer wings being about half hard and half membranous.

[@sk8rdman]

I recall watching an episode of SciShow Talk Show in which Hank was corrected on the function of the cloaca, and we learned more about it. I thought it was this episode, but apparently not. Does anyone recall which episode that's from?

[@Xerxees144]

Poop Dog; No feces were harmed in the making of this video; Urine my way; Poop-for-Brains; I used to play the pooper-scooper like you, until I took an arrow to the knee; insert more very bad poop jokes/references here

[@earsto]

Oh HANK! "I LOVE THE CLOAKA!"

[@Ruthlessrb]

I love my Redfoot Tortoise!!!

[@LukaOnline]

sexual tension much?

[@ruona1andonly]

I though I was the only one who noticed it.

[@kayvee256]

They're both totally adorable dorks. How can there *not* be sexual tension?! I crush on Jessi so hard, and if I were into guys I'd probably be crushing on Hank too. :P

[@flutedscissors9655]

UbiquitousChe *WE NEED FANFICS NOW*

[@spoonbadger]

Can Animal Wonders bring in a Patagonian cavy? I just looked the up on the Animal Wonders site and it's so awesome! It's like a bunny crossed with a guinea pig. a Bunny Pig! I have to know more!

[@901help2]

Hank: "I love the cloaca..." [Weird Pause]

[@alexanderdejeger]

Could you do a video on what would happen if two black holes collided?

[@CaManiaco]

Augusto is a lucky guy!

[@duckgoesquack4514]

i have a pet red footed tortoise :D

[@lionzin170]

Nice scenario!

[@invisiblejaguar1]

Oh right, didn't know that one :-D

[@AaronDamigos]

You should have a SciShow dedicated to inflammatory bowel disease.

[@kokorolex]

Idk why this tortoise reminds me of bulbasaur

[@SahilChaturvedi]

Jesse is the best

[@HazelEyesButterflies]

I feel like Jessi is Eliza Thornberry all grown up

[@rctecopyright]

Well you're just super duper full of facts. Is this your field?

[@raviolin]

Poop quiz?! Are you serious?!

[@shade9592]

No shit... Smart, passionate about incredibly cool things and the red hair. Jessi's a rare gem. Augusto's lucky dude.

[@pardox28]

Rio the animated film and Linda & Tulio remind me of Jessi and Augusto.

[@adriananoe5512]

I thought the leaf was some kind of jelly.

[@DFrats]

How to have a serious conversation about bird scat for 10 minutes lol.

[@Burgeonite]

Darius Fratila I learned something new about bird poop today.

[@Guru_1092]

"I love the cloaca" -Hank Green 2013

[@syystomu]

Btw, I can't get over how beautifully red Jessi's hair is. I love natural red hair. At least I'm pretty sure it's natural. It looks natural and she has the skin of a redhead too. (Also, I know I'm getting creepy but I love her eyes too. I love the distinctive shape. And I'm going to stop being creepy now, I promise.)

[@Greater98er]

Based on this episode I thought it would be a turd-le

[@flatplant]

But some times easy doesn't feel as good.

[@Lyricon24]

What the heck happened at 2:06

[@AnnoyingAsianWitch]

Some time in the future Hank experiences millipede poop with Olivia 😂

[@linefortier8595]

You are a damn kid! Naughty boys and girls, I love you.

[@mongoslade321]

I'm not going to lie......she's really cute

[@BloodiusAurion]

geek flirting at its best... and then the awkward moment when her "life partner" comes in the pic!

[@syystomu]

Eeeeeeep, I love tortoises! And turtles. (Actually they're both just called "kilpikonna" (literally "shield toad") in Finnish so I always mix them up too, Hank. (Okay, you can say "vesikilpikonna" and "maakilpikonna", "vesi" meaning water and "maa" meaning land.)) Anyway I love them! I'd love to have one but I don't really trust myself to take care of animals... I wanted one as a kid but mum wouldn't allow it; she hates all reptiles for some reason.

[@youmaycallmeken]

2 questions I would have asked: What's the difference between a tortes and a turtle, and do they have nerves in their top shells (and if not, can they feel through them)?

[@connordaniel134]

tortoises tend to live on land and live longer lives while turtles primarily live in the water and live shorter lives.

[@LaviniaDeMortalium]

They 'do' have nerves. She's done a video on that over on her channel. She also advises you don't paint them, as that will cause the animal to suffocate.

[@mathewzappa8656]

Would you be able to age a tortoise by counting the rings on a desert tortoise because there is more food in the summer and it would grow more then so it would make wider rings?

[@Daniel.Walker]

I'm so pleased Jessi is a guest! She feels like part of the Scishow family already, and watching these two laugh about poop with hank is a first class way to spend a few minutes

[@Kagehime]

Jessi has definitely come out of her metaphorical shell. I remember in the first few episodes she was sort of awkward and seemingly shy, but now she's adorable and talking about poop with Hank! :D

[@Readera]

The ad was hank for Emerson. Super neat!

[@thejerrymobile]

Yay! A set that isn't a black void! :) I mean, you're great too... But now we're less claustrophobic.

[@anotherhappyday93]

I love how she always emanates this love for animals. it is lovely.

[@joelkennedy3063]

The castanedas look like the pair from Rio + Rio 2

[@joelhc9703]

This is how the parents of Saul "El Canelo" Alvarez (the boxer) look?

[@ENJ4321]

I thought bugs was a general term to include all insects, arachnids, worms, etc.

[@mintoo2cool]

tortoises are so fucking cool!

[@charles4112]

Yucca doesn't have any nerves on her shell, does she?

[@FreedomAnderson]

They do.

[@LydiaTarine12]

Bug is a technical term, but millipedes aren't bugs. True bugs often have a diamond shaped body and always a drilling/piercing mouth part. I'd post an example link but they've never allowed me to put links in a comment before. My favorite example is the Assassin Bug.

[@SexiestPenguin]

Bug: Formally, an insect of the order Hemiptera, known as the "true bugs" Informally, an arthropod-except aquatic crustaceans and xiphosura-including individuals or species of insects, arachnids, myriapods (which is what millipedes are), woodlice, segmented worms, gastropods, and terrestrial crabs.

[@thelostnation8625]

MUAH HAH HAH!!!!!! We shall have have a farm, and the farmers will be TORTISES!!!!

[@MorleyQ]

I don't know, actually. I guess I'm too used to seeing rude KZbin comments about a woman's beauty that I get self-conscious if I want to respectfully admire a lady, worried that someone would misconstrue it somehow as one of those rude comments. I'm not sure where the shame comes from, but I think being a complete loser in the romance department despite my best efforts has scarred me a little.

[@thelonelydirector]

We were more concerned with covering the conversations and getting small inserts here and there. In the end, a 4th camera op, specifically one just with the job of shooting inserts of the poop would be a good addition. For this particular shoot I believe it was actually Me, Louey, and Caitlin on camera as Michael was just flying back in from Chicago... I think. It's been a while.

[@arth8265]

Yep, animals often eats their poop, because it's high in vitamin B (-vitamin B12 to be precise-). Humans also produce vitamin B12 in their poops.

[@Viniter]

"I love the cloaca!" -Hank Green, 2013

[@MorleyQ]

I am not ashamed to say that Augusto is a very lucky man to be with Jessi. She's obviously intelligent and friendly and she has red hair for crying out loud! Words cannot describe how much I wish I could meet a lady like her. No reason for me to be ashamed about that.

[@MorleyQ]

I've been looking for 8 years, but looking and finding are two radically different things, especially when you're painfully shy and socially anxious and have the uncanny ability to make interesting women avoid you by talking to them...about anything.

[@mikaelrocha1504]

This lady has good Humor And looks a great woman

[@Davwyn]

Thank you for finally getting rid of that pitch black set. Your new set is so much easier to see everything and a lot easier on the eyes. Cheers!

[@nickwoo2]

her hair is awesome this episode

[@maxiaguirre]

and you´re right. in anatomy articulation is the union of 2 bones. it comes fro the latin articulatio (joint, union point, etc)

[@PrivacyKingdoms]

ive seen those round poop things in my back yard all my life, and i had no idea what they were! thanks scishow!

[@linefortier8595]

Darn cool, the " toddlers"- smart and nice toddlers!!! God bless you.

[@chemistryguy]

KZbin Poop. That is all.

[@LupusIgnis]

Judging from the samples currently decorating my windows, I'd say gull poop goes from green over purple to brownish black in the same defecation. Seabird poop is known for its very high contents of nitrogen, phosphate, and potassium and therefore used as manure (called "guano"). The white part more or less serves the same function as pee, but without the bird losing as much water as a mammal would, allowing for less water in the body and therefore lower body weight.

[@tiesthijsthejs]

Please, popularism of science shouldn't act as deterministic assumption, thereby reinforcing the spread of misunderstandings of evolution, and its vulnerability for false attacks! The job of scientists is also to one day learn how to communicate in a nuanced way the principles, instead of being brilliant but applying sloppy semantics. Language is communication is sense of reality is transmission of knowledge is understanding!

[@scythedd7]

While 'Bug' is a technical term formally used to identify an animal order, it is not used has Hank just said it was used, as that is a common usage but still incorrect. My dad works with insects and he had me learn this from a young age as because it also deals with basic logic, "All bugs are insects, but not all insects are bugs". Bugs are part of an order of insect called Hemiptera and sometimes more specifically the sub-order Heteroptera, which includes bedbugs, assassin bugs and pond skaters

[@syystomu]

Would it be possible to have the close ups err... closer up? I'd like to see all the details. I could hardly see that millipede poop at all.

[@crsjen88]

Actually hank. the word bug does not refer to all types of creepy crawlies, that is the informal use of the word. the formal, and "correct" definition of a bug is a member of the order Hemiptera. An order of insects whos most prominent shared trait is their sucking mouth parts. The order includes cicadas, aphids and leafhoppers

[@annaandersson5266]

This reminds me of a part of a childrens' show called "Myror i brallan" in Sweden. (translates to "Ants in my pants") They had a thing called "Gissa bajset" ("Guess the poop"), where they showed some poop, three animals and a gave the kids a few clues. Then you were supose to guess to whom the poop belonged. I loved that show!

[@themongoosedog]

In the US "turtle" can be as broad as "tortuga" (both water and land) while "tortoise" refers just to land-dwelling turtles (though some, like box turtles, are still called turtles). I believe that in Britain (and maybe parts of the US?) there's a third term, "terrapin," which I think refers to freshwater turtles, but someone can correct me if I'm wrong.

[@toxiPsychotic]

No, that's "true bugs", not "bugs". All true bugs are bugs, but not all bugs are true bugs. Most people will use "bugs" to mean something like, all arachnids, myriapods, and hexapods. Sometimes people will say "bug" to mean "true bug" but unless stated otherwise you should probably assume that they're just using it to mean the definition above.

[@inkling139]

Yay Red Footed Tortoise! I own one myself named Tortellini. These guys are absolutely adorable, especially when they eat. Picture one gleefully mauling a flower in their characteristic slow motion :D And I have to agree with Jessi, as someone working in the animal care industry, poop inevitably crops up in the conversation during dinner. Never fails lol. Love the new location.

[@Mysti13x]

I would love to see more poo scishow videos. In Agriculture at school we watched a poo documentary and it was fascinating, but it has been a long time (10 years) since I saw it and yeah I have forgotten most of it. lol. But I know that Poo is one of the most important things for the continuation of plants and animals on this earth...so yeah More poo videos please. :)

[@dunx125]

Correction for Hank: the word 'bug' outside of 'Murica refers to members of the order Hemiptera within the insects. Millipedes are certainly not bugs, but if you want a word to describe a group that encompasses bugs and millipedes, it's 'invertebrate'. That isn't actually a taxon though, unlike vertebrates, but it is a commonly used term for backbone-less creatures.

[@jw2327]

WHOA! HANK! I'm pretty sure a BUG was a sap-sucking insect. or an insect with a sucking proboscis from the group: Hemiptera - aphids, shield bugs, assassin bugs.... And to better describe the Millipede - Arthropod. It's definitely not a bug - but your look to the camera when saying that - kinda made it sound like fact. :S and I'm not an Etymologist or Entomologist.

[@AdamWhistle1]

You are of course right to focus more on the conversations. There were a few good shots of Yuccu (the tortoise IIRC) towards the end too, which is good because the tortoise's shell is quite pretty. The green, gelatin-like thing was weird enough to take a closer look though. I take it that these talk show videos are done in two takes or something like that?

[@AdamWhistle1]

I just have to say, it was a great idea to have Jesse herself as a guest! She has a very charming and cheerful presence. The poop topic turned out to be more interesting than expected. My only complaint is that the camera guys should be allowed to zoom in more. I can'T believe I'm typing this, but I would have liked a zoom-in on the poops. But mostly on Yucca.

[@Yoelmh]

Uric acid production by birds and repltiles is actually less efficient in terms of energy, but it conserves water (we have to void a lot of dilute urine due to urea toxicity, they void very little water). This is one of the reasons they (esp reptiles) can go a long time without water, whereas we can barely go a few hours without being uncomfortable.

[@Wafflical]

When I hear turtle, I guess I think of terrapin, and I believe believe (Not sure abut any of these) that they can swim, but also walk on land, can retract into their shells, and hibernate in underwater mud. Some examples would be a painted turtle, box turtle, or snaping turtle. Maybe that is a turtle and a terrapin is something different, I don't know.

[@metaline1994]

8:37 THE POOP IS GONE!!!

[@mintoo2cool]

wait! wait!!! she's gonna grow bigger ? how ? will her shell grow with her ? how ?

[@211teitake]

Really? Do you have the research to back it up? I think the scientists disagree with you. Check Yup. Riken's 2009 presentation, "The secret of the turtle shell" and the latest research reporting by ScienceDaily article "The Origin of the Turtle Shell: Mystery Solved."

[@iota-09]

maybe yes and maybe not,that's just how you talk when you find an actually kind and interesting person,but i hardly believe she "hit" on hank... he's a man of science who decided to be alone(at least that's i assumed from one of his videos),and even if noy so,that still would be unlikely.

[@sapphosabine9060]

Some of the comments on this show when Jesse comes on are just vile. Hank is married. He is not gonna screw Jesse. God if I was Katherine I could never read these comments. Why are you all so interested in who Hank has sex with. It's just vile. Get over yourselves.

[@Nzombii]

And yet it was still flagged as spam! (though technically the spam is meant to be getting users to go support scams or unrelated content, and not a poorly formed personal opinion [that would be what down voting is for]). :) Yes I'm being patronizing, sorry. :(

[@thewuurm]

Camera guy, which I think is the problem. The only person listed as camera op in the credits is Michael Aranda, who is also now commuting regularly from Montana to Chicago to keep filming Brain Scoop. I totally agree some zoom shots would have been nice, but that's how it goes sometimes.

[@metalElvalover]

"I wanna know more about the chemistry of this," the "this" in that quote being bird shit...That is the mark of an EXCELLENT scientist Hankadoodle. I freaking love it. Also, I got as far as you did, I knew the feces and uric acid but I had not idea bout the third component.

[@Tfin]

Dolphins are... not easy to bring to the set. :) However, other animals do the same. I've heard that groundhogs actually have names for individuals they encounter repeatedly from _other_ species. We need waveform analysis to detect all the various ways they say "predator" though.

[@ZorroRBF]

Guys, great video. I learned several things today. For example i had never noticed that in English you have two words to differentiate "turtles and tortoise", in spanish we only have one "tortuga" and to differentiate we add "de mar" (sea).

[@RickTrajan]

I think turtle stays on the sea most of their lives and tortoise(I spelled it wrong? I think so too) live on land. I didn't do any research yet but something I observe. Tortoise seems to have more bulky body and turtles seems to be flat.

[@Kd8OUR]

As somebody who has done the less than glorious task of cleaning cages and labs I am getting a kick. Also insect frass, I noticed roaches produced a lot of it and would collect it from bins at harvest. Turns out the shit is practically gold.

[@sethkeown5965]

Not a huge fan of scishow talk show, but you get my like to stay on the youtubes. Also, could you go over the process of how a human bone might break and heal? I recently experienced just that and would like to know more about what is going on in my body.

[@kf4ung]

I like Augusto, he wasn't as smooth on camera as Jessi, but he loves and knows his stuff. Cool. Normally poop is not a conversation subject unless you are talking to your doctor, but this made the subject interesting and education. Thanks.

[@EXPHunterForce]

I love the fact that humans are fascinated with other species whereas all other wild animals are generally only concerned with "is it a danger, can I have sex with it, or can I eat it." Our levels of curiosity is what makes us human.

[@Albinojackrussel]

Tortoises have flat feet, while turtles have flippers with claws, tortoises are land animals and turtles are sea animals. Sea turtles also have a salt gland in the corner of their eyes nose and tongue. Turtles can't retract into their shells.

[@LysanderStopMotion]

Hank always seems so uninterested on the talk shows. Personally, I'd prefer that man with the fancy spiked hair and lovely facial hair, as he seems more enthusiastic. There'd be less awkward silences as well, I think.

[@malneir]

i love how when hank puts it down it's immediately all like iiiiii neeeeeeedddd toooo geeeeettt thhhheeeeeeee fffffffffuuuuuuuuuuccckkk aaawwwaaaaaaaaaaayyyy fffffrrrrrooooooooommmmmm thhhhhhhiiiiiisssssss ggguuuuuuyyyyyyyyy

[@Alchemydude667]

If it weren't 3 AM when I watched this I would have screamed Carapace and Plastron from the top of my lungs, and done a happy dance for knowing stuff Hank didn't. God I loved being in animal biology classes.

[@Enke796]

Many plants are adapted to use living organisms around them. It is like bees and flowers. Bee get her nectar and flowers get "accidentally" pollinated be the bees. This type of coexistence called symbiosis.

[@mark8200]

hank and john I love what you do keep it up, its better then most tv but I think you should ditch the talk shows and keep making more of your other stuff. but either way sci show and crashcourse rock!!! go team New Zealand