Гэрийн тэжээмэл амьтад, & амьтад

True Facts: Snake and Lizard Tongues

SHIRTS: ze-true-store.myshopify.com/
PATREON: www.patreon.com/truefacts/
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 (rubegalab.uconn.edu/) deserves thanks for introducing me to Kurt in the first place.

Additional footage licensed from:
Envato Elements


  1. Joy


    Цагийн өмнө

    3:27 'One of those ink blots that the brain witches make you look at' ... 😆

  2. Real Nito

    Real Nito

    Цагийн өмнө

    Dr. Schwenk needs some more appreciation

  3. Karnaras Anargyros

    Karnaras Anargyros

    6 цагийн өмнө

    Late at night , when I can't sleep , I come to this corner of youtube to make myself numb

  4. Sadenna Swafford

    Sadenna Swafford

    10 цагийн өмнө

    Q: would you consider doing one on the Watusi Bulls? I am sure you would love to research the facts on them!

  5. Texas Red

    Texas Red

    17 цагийн өмнө

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

  6. Elroy da shogun

    Elroy da shogun

    18 цагийн өмнө

    Me:Isnt a worm lizard a snake The scienctist:imma slap the shit outta yah

  7. Autumn Mentink

    Autumn Mentink

    20 цагийн өмнө

    "Are any viewers gone yet?" I'll admit I was eating breakfast and very nearly was.

  8. aristideau


    23 цагийн өмнө

    the double entendre 'dad jokes' are really ugh

  9. Jar Ray

    Jar Ray

    Өдрийн өмнө

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

  10. PuPOp Pankek

    PuPOp Pankek

    Өдрийн өмнө

    Do more videos about oppih

  11. tigress63


    Өдрийн өмнө

    There should be a video on the fig wasp

  12. stu booth

    stu booth

    Өдрийн өмнө

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

  13. michel perreault

    michel perreault

    Өдрийн өмнө

    Thank you so much for putting a smile on my face. Very funny to watch.

  14. Sack fu

    Sack fu

    Өдрийн өмнө

    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.

  15. Basil Southey

    Basil Southey

    Өдрийн өмнө

    This is literally the best example of science communication I have EVER seen. Going to show this to classes I teach.

  16. Anne Bruecks

    Anne Bruecks

    Өдрийн өмнө

    I have now learned more interesting and in detail info than I did in 12 years of public education.

  17. Krysta Monique

    Krysta Monique

    Өдрийн өмнө

    😹😹😹😭 “Brain witch”

  18. Nate Gawlik

    Nate Gawlik

    Өдрийн өмнө

    Have you ever done a video on flatworms? I’m sure this would be entertaining mnmore.info/bin/video/qKaY3s-tf4nMZLw

  19. Laure_lei


    Өдрийн өмнө

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

  20. Ano N. Ymous

    Ano N. Ymous

    Өдрийн өмнө

    1:42 cute hognose

  21. glfmn


    Өдрийн өмнө

    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.



    2 өдрийн өмнө

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

  23. Benedict Zafra

    Benedict Zafra

    2 өдрийн өмнө

    How Is Teddy?

  24. 2balive1


    2 өдрийн өмнө

    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

  25. john kleinsmit

    john kleinsmit

    2 өдрийн өмнө

    zefrank. you need to teach public speaking at a local school

  26. R S

    R S

    2 өдрийн өмнө

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

  27. craxy d

    craxy d

    2 өдрийн өмнө

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

  28. Jaylilah


    2 өдрийн өмнө

    Pure, frikken brilliance! One of your best Zefrank!

  29. cyberhawk80


    2 өдрийн өмнө

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

  30. The Latvian Corsair

    The Latvian Corsair

    3 өдрийн өмнө

    0:40 Somebody's gonna get pregnant.

  31. Dustin Ontaiyabbi

    Dustin Ontaiyabbi

    3 өдрийн өмнө

    We need to enjoy Zefrank while he is here. He's 48 years old.

  32. Garret Key

    Garret Key

    3 өдрийн өмнө

    A few ideas. Platypus, otter, komodo dragon, spitting spider, moose, skunk, casowary bird.

  33. Ladyhawk's Lair

    Ladyhawk's Lair

    3 өдрийн өмнө

    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.

  34. A Mark

    A Mark

    3 өдрийн өмнө

    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

  35. Ladyhawk's Lair

    Ladyhawk's Lair

    3 өдрийн өмнө

    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."

  36. A Mark

    A Mark

    3 өдрийн өмнө

    Omg you know what I just thought of ..... this😑this😑this is like The Adult Swim of Animal Planet 🤫🤣

  37. David Weiller

    David Weiller

    3 өдрийн өмнө

    Wow, fascinating video! Here is my take of an 🐍 Eyelash viper flicking its forked tongue: mnmore.info/bin/video/lW6yqbmRZmrZotI

  38. Katherine White

    Katherine White

    3 өдрийн өмнө

    I finally lost it at "snowman's baby maker"

  39. snikrepak


    3 өдрийн өмнө

    Hr violation!!!!! Hahahahahaa

  40. gottabesandi


    3 өдрийн өмнө

    Thanks. Now I can never unsee a slow motion mouth blowing a raspberry. 👁👅👁

  41. Edward Tiangco

    Edward Tiangco

    3 өдрийн өмнө

    I guess I'm a perv as well. 😅

  42. life time

    life time

    3 өдрийн өмнө

    Dear Ze frank We mostly want true facts about a human. Please because thats how we do Sincerely -Life_Time0s

  43. Doofus_ow


    4 өдрийн өмнө

    At 6:49... Holy shit that had to b one of the best

  44. краб


    4 өдрийн өмнө

    Why is your voice so soothing?

  45. Sung Ji

    Sung Ji

    4 өдрийн өмнө

    You're back!

  46. Chandra Satrio

    Chandra Satrio

    4 өдрийн өмнө

    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.

  47. PreBound


    4 өдрийн өмнө

    Man, the laughs just don't stop when watching this. Comedic gold.

  48. Kaido Vesternin

    Kaido Vesternin

    4 өдрийн өмнө

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

  49. Felix


    4 өдрийн өмнө

    That timeline of all the funny moments he made had me dying! He seems like a great guy!

  50. Chaotic Good

    Chaotic Good

    4 өдрийн өмнө

    This is how everyone should should learn about animals

  51. Jürgen Kun

    Jürgen Kun

    4 өдрийн өмнө

    what that tongue do 😏

  52. DB


    4 өдрийн өмнө


  53. savana muddypaws

    savana muddypaws

    4 өдрийн өмнө

    Looks like Trump's tongue. #Stopthestupid Trump!

  54. bassmith448 bassist

    bassmith448 bassist

    4 өдрийн өмнө

    Love the boobie music at the end too. Funky grooves in da house!!!!!!!

  55. Jessie Jubilee

    Jessie Jubilee

    4 өдрийн өмнө

    “Can’t fool me brain witch.” 🤣

  56. bassmith448 bassist

    bassmith448 bassist

    4 өдрийн өмнө

    I died when you said sinus infection!!!!

  57. Leah C

    Leah C

    4 өдрийн өмнө

    4:25 made me die

  58. LegendPhantom


    4 өдрийн өмнө

    Looks like not only gonna blow my mind*

  59. Kokichi's_Expired_Panta


    4 өдрийн өмнө

    POV: You're here from teddy has an operation

  60. Hallebumba


    4 өдрийн өмнө

    i want: Costasiella kuroshimae

  61. Proudly Brown

    Proudly Brown

    4 өдрийн өмнө

    "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.

  62. Simond Frost

    Simond Frost

    4 өдрийн өмнө

    Bro, I died when he said HR violation. Your a genius!

  63. ChogMils


    4 өдрийн өмнө

    uhh how about true fact about zefrank1

  64. LionGaming


    4 өдрийн өмнө

    i love this Chanel

  65. Korok Seed

    Korok Seed

    5 өдрийн өмнө

    I’m not gonna lie, this was actually super interesting

  66. Torti Tongue

    Torti Tongue

    5 өдрийн өмнө

    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

  67. Fluffy waffles fw.

    Fluffy waffles fw.

    5 өдрийн өмнө

    The end card terrifies me

  68. pluspiping


    5 өдрийн өмнө

    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!

  69. Martin Friman

    Martin Friman

    5 өдрийн өмнө

    Shit, this was seriosly educational 😅

  70. FedBiker


    5 өдрийн өмнө

    The sound at 8:31got stuck halfway between my hippocampus and neo-cortex and is now on infinite loop.

  71. R3DLiFE


    5 өдрийн өмнө

    lmfao !!!! factfull and funny !

  72. Greer McNally

    Greer McNally

    5 өдрийн өмнө

    '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.

  73. DeathLotus


    5 өдрийн өмнө

    "When humans do this it's called an HR violation"🤣

  74. charizard4321


    5 өдрийн өмнө

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

  75. Muneerah Adams

    Muneerah Adams

    5 өдрийн өмнө


  76. Kevin Parks

    Kevin Parks

    5 өдрийн өмнө

    Please do a video on the small and well named bird called a bushtit...

  77. rc casano

    rc casano

    5 өдрийн өмнө

    “When humans do this, it’s called HR Violation” The ending: 10:18

  78. Rafael Pasito

    Rafael Pasito

    5 өдрийн өмнө

    When human do its called HR [human rights] violations! Hahahaha LoL

  79. Twisty99


    6 өдрийн өмнө

    Where is teddy now?

  80. MsSaraKirkpatrick


    6 өдрийн өмнө


  81. MsSaraKirkpatrick


    6 өдрийн өмнө

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

  82. GAME-X AD


    6 өдрийн өмнө

    Teddy is still alive?

    • Twisty99


      6 өдрийн өмнө

      Probably not

  83. Stormy Davis

    Stormy Davis

    6 өдрийн өмнө

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

  84. Muglorgrimlockable


    6 өдрийн өмнө

    8:30 I rewound and even slowed it down me and the misses are dying and also copying it all day going randomly.....BLBMBMBLL

  85. Christian Terry

    Christian Terry

    6 өдрийн өмнө

    This tongue will blow your mind. That’s what she said

  86. codeman7055


    6 өдрийн өмнө

    You should make videos for whales and sharks

  87. S CO PO

    S CO PO

    6 өдрийн өмнө

    All these lizards give me Schwenks

  88. Jesus jiu-jitsu

    Jesus jiu-jitsu

    6 өдрийн өмнө

    Use this as a "I was today years old when I found out worm lizards were a thing" button.

  89. Asani Williams

    Asani Williams

    6 өдрийн өмнө

    That mouth at the end was traumatizing

  90. Peter Meuller

    Peter Meuller

    6 өдрийн өмнө

    “When humans do this it’s called an HR violation” 😂😂😂😂😂😂

  91. Hunter Clwminsom

    Hunter Clwminsom

    6 өдрийн өмнө


  92. Anna Mishonova

    Anna Mishonova

    6 өдрийн өмнө

    I self-identify as a smarty nipple

  93. Pumkinn


    6 өдрийн өмнө

    wheres mr teddy

  94. Jose Arellano

    Jose Arellano

    6 өдрийн өмнө

    HR violation 🤣🤣💀💀

  95. TheOnlyRealTapir


    6 өдрийн өмнө

    HR violation :DDDD

  96. Samuel Varga

    Samuel Varga

    6 өдрийн өмнө


  97. Samuel Varga

    Samuel Varga

    6 өдрийн өмнө


  98. Samuel Varga

    Samuel Varga

    6 өдрийн өмнө


  99. Rukyura Myky

    Rukyura Myky

    6 өдрийн өмнө

    Why did i click while i was eating, i follow him since the start, i should have known better.

  100. Mr. W

    Mr. W

    7 өдрийн өмнө

    It will blow something, but it's not my mind.