True Facts: Snake and Lizard Tongues

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Dr. Kurt Schwenk
It was a pretty incredible gift to be able to work with Kurt on this episode. His work spans decades and it took multiple tries to understand it in a way that could be put together in a narrative. I am very grateful for all of his time, warmth and generosity. I had to leave many, many wonderful pieces of research and factoids out due to time constraints but I would urge any of you that are interested to dive deeper into his work.
His colleagues Dr. William G. Ryerson, Ms. Amanda E. Hewes and
Ms. Sara Horwitz contributed a great deal to some of the research that I mentioned.
Dr. Margaret Rubega ( deserves thanks for introducing me to Kurt in the first place.

Additional footage licensed from:
Envato Elements

  • "are the new viewers gone yet?" No its so funneh

    Texas RedTexas Red6 ժամ առաջ
  • Me:Isnt a worm lizard a snake The scienctist:imma slap the shit outta yah

    Elroy da shogunElroy da shogun6 ժամ առաջ
  • "Are any viewers gone yet?" I'll admit I was eating breakfast and very nearly was.

    Autumn MentinkAutumn Mentink8 ժամ առաջ
  • the double entendre 'dad jokes' are really ugh

    aristideauaristideau12 ժամ առաջ
  • u know, when i first heared of the guy Jerry i thought he was me as my name was also Jerry

    Jar RayJar Ray13 ժամ առաջ
  • Do more videos about oppih

    PuPOp PankekPuPOp Pankek13 ժամ առաջ
  • There should be a video on the fig wasp

    tigress63tigress6317 ժամ առաջ
  • Today's drinking game. Scroll through the comments, take a swig every time you see a direct quote from the vid. Good luck.

    stu boothstu booth19 ժամ առաջ
  • Thank you so much for putting a smile on my face. Very funny to watch.

    michel perreaultmichel perreault19 ժամ առաջ
  • So reptiles use their demon tongues to lick the ground, then snort up whatever they find through their mouth nostrils. Because snakes apparently have nostrils on the roof of their mouths.

    Sack fuSack fu19 ժամ առաջ
  • This is literally the best example of science communication I have EVER seen. Going to show this to classes I teach.

    Basil SoutheyBasil Southey21 ժամ առաջ
  • I have now learned more interesting and in detail info than I did in 12 years of public education.

    Anne BruecksAnne Bruecks23 ժամ առաջ
  • 😹😹😹😭 “Brain witch”

    Krysta MoniqueKrysta MoniqueՕր առաջ
  • Have you ever done a video on flatworms? I’m sure this would be entertaining

    Nate GawlikNate GawlikՕր առաջ
  • Freaking hilarious, and what a champ the Doc is. Thank you for all the work that goes into these!!!!!

    Laure_leiLaure_leiՕր առաջ
  • 1:42 cute hognose

    Ano N. YmousAno N. YmousՕր առաջ
  • TRUE FACTS ABOUT ORCHIDS A lot of orchids use sexual deception to get pollinated, and all kinds of other crazy strategies that often involve being mean to insects.

    glfmnglfmnՕր առաջ
  • “When humans do it it’s called an HR violation” ahhh I love this channel lmao

  • How Is Teddy?

    Benedict ZafraBenedict ZafraՕր առաջ
  • Hey Frank. As one genius to another, I propose a market that will over double your cash market. I have always loved your humor and attention to detail. I know that this is only a love of leisure that you don't really need. Thank you for keeping on. You have the capacity to educate young minds with your great humor! If you are willing to make videos for children , you have the chance to grow greater than Bill Ney the "science guy". I would love to see you share your knowledge and humor with my son. He's 10. Please create this page. You might even get picked up by PBS if you do it right

    2balive12balive1Օր առաջ
  • zefrank. you need to teach public speaking at a local school

    john kleinsmitjohn kleinsmitՕր առաջ
  • I'm just bummed out that he didn't pronounce "tongue" as "tongewwwwwrr". Otherwise it was brilliant.

    R SR SՕր առաջ
  • no matter how bad i feel, you make me laugh,love your vids. they keep me same in the insane world of 2020

    craxy dcraxy d2 օր առաջ
  • Pure, frikken brilliance! One of your best Zefrank!

    JaylilahJaylilah2 օր առաջ
  • when humans do it , it's called an HR violation.. thanks for the laugh in these dark times..

    cyberhawk80cyberhawk802 օր առաջ
  • 0:40 Somebody's gonna get pregnant.

    The Latvian CorsairThe Latvian Corsair2 օր առաջ
  • We need to enjoy Zefrank while he is here. He's 48 years old.

    Dustin OntaiyabbiDustin Ontaiyabbi2 օր առաջ
  • A few ideas. Platypus, otter, komodo dragon, spitting spider, moose, skunk, casowary bird.

    Garret KeyGarret Key2 օր առաջ
  • This was very informative. Seriously. I'm gonna need to watch this video again...and then get super slow-mo footage of my hognose snake's tongue. That perv, Dr. Schwenk, might pay me for it. J/K ;) I'm super impressed he figured out all this stuff.

    Ladyhawk's LairLadyhawk's Lair2 օր առաջ
  • I love you so much so I just would like to take a moment and type out the appreciation. I appreciate this so much because this is a lot of time and effort and I'm learning So thank you lol

    A MarkA Mark2 օր առաջ
  • 6:21 "Are the new viewers gone yet?" XD I've loved _True Facts_ for years, but a friend of mine can't get past the Morgan Freeman voice. I'm tempted to tell him: "Morgan Freeman, Morgan Freeman, Morgan Freeman, Morgan Freeman...Morgan Freeman. Morgan. Freeman."

    Ladyhawk's LairLadyhawk's Lair2 օր առաջ
  • Omg you know what I just thought of ..... this😑this😑this is like The Adult Swim of Animal Planet 🤫🤣

    A MarkA Mark2 օր առաջ
  • Wow, fascinating video! Here is my take of an 🐍 Eyelash viper flicking its forked tongue:

    David WeillerDavid Weiller3 օր առաջ
  • I finally lost it at "snowman's baby maker"

    Katherine WhiteKatherine White3 օր առաջ
  • Hr violation!!!!! Hahahahahaa

    snikrepaksnikrepak3 օր առաջ
  • Thanks. Now I can never unsee a slow motion mouth blowing a raspberry. 👁👅👁

    gottabesandigottabesandi3 օր առաջ
  • I guess I'm a perv as well. 😅

    Edward TiangcoEdward Tiangco3 օր առաջ
  • Dear Ze frank We mostly want true facts about a human. Please because thats how we do Sincerely -Life_Time0s

    life timelife time3 օր առաջ
  • At 6:49... Holy shit that had to b one of the best

    Doofus_owDoofus_ow3 օր առաջ
  • Why is your voice so soothing?

    крабкраб3 օր առաջ
  • You're back!

    Sung JiSung Ji3 օր առաջ
  • I swear to God, ZeFrank's work is just getting better and better but I couldn't tell which video that started it all. He seems just to start from 100 and just keep going forward.

    Chandra SatrioChandra Satrio3 օր առաջ
  • Man, the laughs just don't stop when watching this. Comedic gold.

    PreBoundPreBound3 օր առաջ
  • oh my god the lizard with its leg-parts in the air, I could almost hear it go "weeee, look mom, no hands!"

    Kaido VesterninKaido Vesternin3 օր առաջ
  • That timeline of all the funny moments he made had me dying! He seems like a great guy!

    FelixFelix3 օր առաջ
  • This is how everyone should should learn about animals

    Chaotic GoodChaotic Good3 օր առաջ
  • what that tongue do 😏

    Jürgen KunJürgen Kun3 օր առաջ
  • 8:32

    DBDB3 օր առաջ
  • Looks like Trump's tongue. #Stopthestupid Trump!

    savana muddypawssavana muddypaws4 օր առաջ
  • Love the boobie music at the end too. Funky grooves in da house!!!!!!!

    bassmith448 bassistbassmith448 bassist4 օր առաջ
  • “Can’t fool me brain witch.” 🤣

    Jessie JubileeJessie Jubilee4 օր առաջ
  • I died when you said sinus infection!!!!

    bassmith448 bassistbassmith448 bassist4 օր առաջ
  • 4:25 made me die

    Leah CLeah C4 օր առաջ
  • Looks like not only gonna blow my mind*

    LegendPhantomLegendPhantom4 օր առաջ
  • POV: You're here from teddy has an operation

    Kokichi's_Expired_PantaKokichi's_Expired_Panta4 օր առաջ
  • i want: Costasiella kuroshimae

    HallebumbaHallebumba4 օր առաջ
  • "you try this. Try flicking your tongue up and down very quickly. When humans do this its called HR violation". One of the many jules.

    Proudly BrownProudly Brown4 օր առաջ
  • Bro, I died when he said HR violation. Your a genius!

    Simond FrostSimond Frost4 օր առաջ
  • uhh how about true fact about zefrank1

    ChogMilsChogMils4 օր առաջ
  • i love this Chanel

    LionGamingLionGaming4 օր առաջ
  • I’m not gonna lie, this was actually super interesting

    Korok SeedKorok Seed4 օր առաջ
  • I recognize your voice from dear kitten! Or you may not be the person who voiced/narrated in it... sorry if you weren’t, you got a very nice voice and some very funny content here though friend XD

    Torti TongueTorti Tongue4 օր առաջ
  • The end card terrifies me

    Fluffy waffles fw.Fluffy waffles fw.4 օր առաջ
  • Is this the kind of page where I can say "I'm always a slut for fluid dynamics" and people will, like, Get It? Love the in-depth sciencey ness of this video, it's a real treat, and thank you Dr. Schwenk!

    pluspipingpluspiping4 օր առաջ
  • Shit, this was seriosly educational 😅

    Martin FrimanMartin Friman4 օր առաջ
  • The sound at 8:31got stuck halfway between my hippocampus and neo-cortex and is now on infinite loop.

    FedBikerFedBiker5 օր առաջ
  • lmfao !!!! factfull and funny !

    R3DLiFER3DLiFE5 օր առաջ
  • 'I'll give an arm and a leg to be the best at it' is now what I'm going to refer to whenever I talk about snakes.

    Greer McNallyGreer McNally5 օր առաջ
  • "When humans do this it's called an HR violation"🤣

    DeathLotusDeathLotus5 օր առաջ
  • Next time I see a snake I'm going to ask it what that tongue do😂😂

    charizard4321charizard43215 օր առաջ

    Muneerah AdamsMuneerah Adams5 օր առաջ
  • Please do a video on the small and well named bird called a bushtit...

    Kevin ParksKevin Parks5 օր առաջ
  • “When humans do this, it’s called HR Violation” The ending: 10:18

    rc casanorc casano5 օր առաջ
  • When human do its called HR [human rights] violations! Hahahaha LoL

    Rafael PasitoRafael Pasito5 օր առաջ
  • Where is teddy now?

    Twisty99Twisty995 օր առաջ
  • "Tongue-Ball"

    MsSaraKirkpatrickMsSaraKirkpatrick5 օր առաջ
  • Dammit, Jerry! Get it right! One minute in, and we're already yelling at you MULTIPLE TIMES!

    MsSaraKirkpatrickMsSaraKirkpatrick5 օր առաջ
  • Teddy is still alive?

    GAME-X ADGAME-X AD5 օր առաջ
    • Probably not

      Twisty99Twisty995 օր առաջ
  • God I want to go to therapy so I can call the therapist a brain witch despite their repeated insistence I stop.

    Stormy DavisStormy Davis5 օր առաջ
  • 8:30 I rewound and even slowed it down me and the misses are dying and also copying it all day going randomly.....BLBMBMBLL

    MuglorgrimlockableMuglorgrimlockable5 օր առաջ
  • This tongue will blow your mind. That’s what she said

    Christian TerryChristian Terry5 օր առաջ
  • You should make videos for whales and sharks

    codeman7055codeman70555 օր առաջ
  • All these lizards give me Schwenks

    S CO POS CO PO6 օր առաջ
  • Use this as a "I was today years old when I found out worm lizards were a thing" button.

    Jesus jiu-jitsuJesus jiu-jitsu6 օր առաջ
  • That mouth at the end was traumatizing

    Asani WilliamsAsani Williams6 օր առաջ
  • “When humans do this it’s called an HR violation” 😂😂😂😂😂😂

    Peter MeullerPeter Meuller6 օր առաջ
  • “Smyooth”

    Hunter ClwminsomHunter Clwminsom6 օր առաջ
  • I self-identify as a smarty nipple

    Anna MishonovaAnna Mishonova6 օր առաջ
  • wheres mr teddy

    PumkinnPumkinn6 օր առաջ
  • HR violation 🤣🤣💀💀

    Jose ArellanoJose Arellano6 օր առաջ
  • HR violation :DDDD

    TheOnlyRealTapirTheOnlyRealTapir6 օր առաջ
  • 9:35

    Samuel VargaSamuel Varga6 օր առաջ
  • 9:25

    Samuel VargaSamuel Varga6 օր առաջ
  • 6:58

    Samuel VargaSamuel Varga6 օր առաջ
  • Why did i click while i was eating, i follow him since the start, i should have known better.

    Rukyura MykyRukyura Myky6 օր առաջ
  • It will blow something, but it's not my mind.

    Mr. WMr. W6 օր առաջ
  • I found someone trying to bite your style... but no one will ever say ... Baby's like you baby babys... that's what zefrank1 do......

    kl Chicagokl Chicago6 օր առաջ
    • 5:27 on the video link

      kl Chicagokl Chicago6 օր առաջ

      kl Chicagokl Chicago6 օր առաջ
  • I love your videos. I learn things and they make me laugh.

    davidbwadavidbwa6 օր առաջ
  • I need evolution to wink at the rest of 2020 and all of 2021 please 🧡

    Butacup PucatubButacup Pucatub6 օր առաջ
  • 😂😂😂 oh Zefrank, both hilarious and education, I nearly peed myself laughing

    NouraJNouraJ6 օր առաջ