True Facts: Snake and Lizard Tongues


830 миӊ. көрүүлөр26

    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

    күнү жарыяланды 15 күн мурун


    1. Ladyhawk's Lair

      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.

    2. A Mark

      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

    3. Ladyhawk's Lair

      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."

    4. A Mark

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

    5. David Weiller

      Wow, fascinating video! Here is my take of an 🐍 Eyelash viper flicking its forked tongue:

    6. Katherine White

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

    7. snikrepak

      Hr violation!!!!! Hahahahahaa

    8. gottabesandi

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

    9. Edward Tiangco

      I guess I'm a perv as well. 😅

    10. life time

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

    11. Doofus_ow

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

    12. краб

      Why is your voice so soothing?

    13. Sung Ji

      You're back!

    14. Chandra Satrio

      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.

    15. PreBound

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

    16. Kaido Vesternin

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

    17. Felix

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

    18. Chaotic Good

      This is how everyone should should learn about animals

    19. Jürgen Kun

      what that tongue do 😏

    20. DB


    21. savana muddypaws

      Looks like Trump's tongue. #Stopthestupid Trump!

    22. bassmith448 bassist

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

    23. Jessie Jubilee

      “Can’t fool me brain witch.” 🤣

    24. bassmith448 bassist

      I died when you said sinus infection!!!!

    25. Leah C

      4:25 made me die

    26. LegendPhantom

      Looks like not only gonna blow my mind*

    27. Kokichi's_Expired_Panta

      POV: You're here from teddy has an operation

    28. Hallebumba

      i want: Costasiella kuroshimae

    29. Proudly Brown

      "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.

    30. Simond Frost

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

    31. ChogMils

      uhh how about true fact about zefrank1

    32. LionGaming

      i love this Chanel

    33. Korok Seed

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

    34. Torti Tongue

      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

    35. Fluffy waffles fw.

      The end card terrifies me

    36. pluspiping

      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!

    37. Martin Friman

      Shit, this was seriosly educational 😅

    38. FedBiker

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

    39. R3DLiFE

      lmfao !!!! factfull and funny !

    40. Greer McNally

      '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.

    41. DeathLotus

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

    42. charizard4321

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

    43. Muneerah Adams


    44. Kevin Parks

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

    45. rc casano

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

    46. Rafael Pasito

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

    47. Twisty99

      Where is teddy now?

    48. MsSaraKirkpatrick


    49. MsSaraKirkpatrick

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

    50. GAME-X AD

      Teddy is still alive?

      1. Twisty99

        Probably not

    51. Stormy Davis

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

    52. Muglorgrimlockable

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

    53. Christian Terry

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

    54. codeman7055

      You should make videos for whales and sharks

    55. S CO PO

      All these lizards give me Schwenks

    56. Jesus jiu-jitsu

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

    57. Asani Williams

      That mouth at the end was traumatizing

    58. Peter Meuller

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

    59. Hunter Clwminsom


    60. Anna Mishonova

      I self-identify as a smarty nipple

    61. Pumkinn

      wheres mr teddy

    62. Jose Arellano

      HR violation 🤣🤣💀💀

    63. TheOnlyRealTapir

      HR violation :DDDD

    64. Samuel Varga


    65. Samuel Varga


    66. Samuel Varga


    67. Rukyura Myky

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

    68. Mr. W

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

    69. kl Chicago

      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......

      1. kl Chicago

        5:27 on the video link

      2. kl Chicago

    70. davidbwa

      I love your videos. I learn things and they make me laugh.

    71. Butacup Pucatub

      I need evolution to wink at the rest of 2020 and all of 2021 please 🧡

    72. NouraJ

      😂😂😂 oh Zefrank, both hilarious and education, I nearly peed myself laughing

    73. EternalBear Animates

      Can you make a true facts video about kiwis? The bird not the fruit XD

    74. Iverson Paul Alay


    75. Codeman785

      During this little snake rave

    76. Mo Na

      Could you da a video about the weirdest species of all... the HUMAN?

    77. harrison sim

      How can such a simple animal be so complicated

    78. Johnny Woods

      Brain witches lols, that's a far more accurate job title for psychiatrists.

    79. Owain Thomas

      I can't believe this is the same guy who did teddy has an operation

    80. happy man

      the way he describes things is the most realistic i have ever seen

    81. alex balfanz

      This is how a healthy bon bon looks like

    82. fds fds

      So that's what my tongue and lower lip look like slowed down when I make fart noises...

    83. Massage Dot Melbourne

      This one is absolute wall to wall 24-carat GOLD. A masterpiece. Just wonderful. Love your work, Ze.

    84. d_piyush

      No animals were harmed during the filming of this video but they died because of laughter 😂😂

    85. futsk01

      Ok that at the end was just excessive.

    86. Chris MacLean

      These documentaries are so fukking awsome!

    87. Travis B

      "It's called an HR violation." That one got me good.

    88. Kevin Perry

      I hate this, and I love this

    89. deanthebean gaming

      I’ve watched this about a dozen times, it’s just so great

    90. Nothsa Rekcap

      Zerfrank: True facts about the Tyrannosaurus Shreks... ...oh wait hold on That’s a typo... True facts about the Tyranosaurus Sex... Jerry is this another typo? Jerry: ... Zerfrank: No? What do you mean it’s your browser history give me the actual script.

    91. Devilofether

      6:17 sorry, still here, and now I have subscribed

    92. Higor Araújo

      "It's sort of like they can smell in stereo." This is absolutely brilliant! As a veterinarian i'll always remember that humorous phrase in my lectures!

    93. Long Hoang

      the outro is epic

    94. Andrew Pearson

      OK like if you stuck out your tongue and tired to flick it up and down when he said that hahaha

    95. Meru Me

      hey remember ur teddy bear operation vid, haha. i watched that when i was like 6 👋 anyway hello again sir

    96. Timi Haze

      The human tongue was the most disturbing

    97. Kerry Godbout

      I had to pause midway through because I laughed so hard I spit my noodles onto my computer.

    98. rasheed gregory

      Dude I love your videos. I formative and extremely hiladious

    99. Angela Bartlett

      "...HR violation." You are a funny man. xD

    100. Diadorim

      I love this man and his content with every fiber of my being