True Facts: Snake and Lizard Tongues

  Shikime 829,588


15 ditë më parë

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

Ladyhawk's Lair
Ladyhawk's Lair Orë më parë
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.
A Mark
A Mark Orë më parë
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
Ladyhawk's Lair
Ladyhawk's Lair Orë më parë
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."
A Mark
A Mark Orë më parë
Omg you know what I just thought of ..... this😑this😑this is like The Adult Swim of Animal Planet 🤫🤣
David Weiller
David Weiller 7 orë më parë
Wow, fascinating video! Here is my take of an 🐍 Eyelash viper flicking its forked tongue:
Katherine White
Katherine White 7 orë më parë
I finally lost it at "snowman's baby maker"
snikrepak 9 orë më parë
Hr violation!!!!! Hahahahahaa
gottabesandi 9 orë më parë
Thanks. Now I can never unsee a slow motion mouth blowing a raspberry. 👁👅👁
Edward Tiangco
Edward Tiangco 15 orë më parë
I guess I'm a perv as well. 😅
life time
life time 15 orë më parë
Dear Ze frank We mostly want true facts about a human. Please because thats how we do Sincerely -Life_Time0s
Doofus_ow 19 orë më parë
At 6:49... Holy shit that had to b one of the best
краб 19 orë më parë
Why is your voice so soothing?
Sung Ji
Sung Ji 20 orë më parë
You're back!
Chandra Satrio
Chandra Satrio 20 orë më parë
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.
PreBound 22 orë më parë
Man, the laughs just don't stop when watching this. Comedic gold.
Kaido Vesternin
Kaido Vesternin 23 orë më parë
oh my god the lizard with its leg-parts in the air, I could almost hear it go "weeee, look mom, no hands!"
Felix Ditë më parë
That timeline of all the funny moments he made had me dying! He seems like a great guy!
Chaotic Good
Chaotic Good Ditë më parë
This is how everyone should should learn about animals
Jürgen Kun
Jürgen Kun Ditë më parë
what that tongue do 😏
DB Ditë më parë
savana muddypaws
savana muddypaws Ditë më parë
Looks like Trump's tongue. #Stopthestupid Trump!
bassmith448 bassist
bassmith448 bassist Ditë më parë
Love the boobie music at the end too. Funky grooves in da house!!!!!!!
Jessie Jubilee
Jessie Jubilee Ditë më parë
“Can’t fool me brain witch.” 🤣
bassmith448 bassist
bassmith448 bassist Ditë më parë
I died when you said sinus infection!!!!
Leah C
Leah C Ditë më parë
4:25 made me die
LegendPhantom Ditë më parë
Looks like not only gonna blow my mind*
Kokichi's_Expired_Panta Ditë më parë
POV: You're here from teddy has an operation
Hallebumba Ditë më parë
i want: Costasiella kuroshimae
Proudly Brown
Proudly Brown Ditë më parë
"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.
Simond Frost
Simond Frost Ditë më parë
Bro, I died when he said HR violation. Your a genius!
ChogMils Ditë më parë
uhh how about true fact about zefrank1
LionGaming Ditë më parë
i love this Chanel
Korok Seed
Korok Seed Ditë më parë
I’m not gonna lie, this was actually super interesting
Torti Tongue
Torti Tongue Ditë më parë
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
Fluffy waffles fw.
Fluffy waffles fw. Ditë më parë
The end card terrifies me
pluspiping 2 ditë më parë
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!
Martin Friman
Martin Friman 2 ditë më parë
Shit, this was seriosly educational 😅
FedBiker 2 ditë më parë
The sound at 8:31got stuck halfway between my hippocampus and neo-cortex and is now on infinite loop.
R3DLiFE 2 ditë më parë
lmfao !!!! factfull and funny !
Greer McNally
Greer McNally 2 ditë më parë
'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.
DeathLotus 2 ditë më parë
"When humans do this it's called an HR violation"🤣
charizard4321 2 ditë më parë
Next time I see a snake I'm going to ask it what that tongue do😂😂
Muneerah Adams
Muneerah Adams 2 ditë më parë
Kevin Parks
Kevin Parks 2 ditë më parë
Please do a video on the small and well named bird called a bushtit...
rc casano
rc casano 2 ditë më parë
“When humans do this, it’s called HR Violation” The ending: 10:18
Rafael Pasito
Rafael Pasito 2 ditë më parë
When human do its called HR [human rights] violations! Hahahaha LoL
Twisty99 2 ditë më parë
Where is teddy now?
MsSaraKirkpatrick 2 ditë më parë
MsSaraKirkpatrick 2 ditë më parë
Dammit, Jerry! Get it right! One minute in, and we're already yelling at you MULTIPLE TIMES!
GAME-X AD 2 ditë më parë
Teddy is still alive?
Twisty99 2 ditë më parë
Probably not
Stormy Davis
Stormy Davis 2 ditë më parë
God I want to go to therapy so I can call the therapist a brain witch despite their repeated insistence I stop.
Muglorgrimlockable 2 ditë më parë
8:30 I rewound and even slowed it down me and the misses are dying and also copying it all day going randomly.....BLBMBMBLL
Christian Terry
Christian Terry 3 ditë më parë
This tongue will blow your mind. That’s what she said
codeman7055 3 ditë më parë
You should make videos for whales and sharks
S CO PO 3 ditë më parë
All these lizards give me Schwenks
Jesus jiu-jitsu
Jesus jiu-jitsu 3 ditë më parë
Use this as a "I was today years old when I found out worm lizards were a thing" button.
Asani Williams
Asani Williams 3 ditë më parë
That mouth at the end was traumatizing
Peter Meuller
Peter Meuller 3 ditë më parë
“When humans do this it’s called an HR violation” 😂😂😂😂😂😂
Hunter Clwminsom
Hunter Clwminsom 3 ditë më parë
Anna Mishonova
Anna Mishonova 3 ditë më parë
I self-identify as a smarty nipple
Pumkinn 3 ditë më parë
wheres mr teddy
Jose Arellano
Jose Arellano 3 ditë më parë
HR violation 🤣🤣💀💀
TheOnlyRealTapir 3 ditë më parë
HR violation :DDDD
Samuel Varga
Samuel Varga 3 ditë më parë
Samuel Varga
Samuel Varga 3 ditë më parë
Samuel Varga
Samuel Varga 3 ditë më parë
Rukyura Myky
Rukyura Myky 3 ditë më parë
Why did i click while i was eating, i follow him since the start, i should have known better.
Mr. W
Mr. W 3 ditë më parë
It will blow something, but it's not my mind.
kl Chicago
kl Chicago 3 ditë më parë
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 Chicago
kl Chicago 3 ditë më parë
5:27 on the video link
kl Chicago
kl Chicago 3 ditë më parë
davidbwa 3 ditë më parë
I love your videos. I learn things and they make me laugh.
Butacup Pucatub
Butacup Pucatub 3 ditë më parë
I need evolution to wink at the rest of 2020 and all of 2021 please 🧡
NouraJ 3 ditë më parë
😂😂😂 oh Zefrank, both hilarious and education, I nearly peed myself laughing
EternalBear Animates
EternalBear Animates 3 ditë më parë
Can you make a true facts video about kiwis? The bird not the fruit XD
Iverson Paul Alay
Iverson Paul Alay 3 ditë më parë
Codeman785 4 ditë më parë
During this little snake rave
Mo Na
Mo Na 4 ditë më parë
Could you da a video about the weirdest species of all... the HUMAN?
harrison sim
harrison sim 4 ditë më parë
How can such a simple animal be so complicated
Johnny Woods
Johnny Woods 4 ditë më parë
Brain witches lols, that's a far more accurate job title for psychiatrists.
Owain Thomas
Owain Thomas 4 ditë më parë
I can't believe this is the same guy who did teddy has an operation
happy man
happy man 4 ditë më parë
the way he describes things is the most realistic i have ever seen
alex balfanz
alex balfanz 4 ditë më parë
This is how a healthy bon bon looks like
fds fds
fds fds 4 ditë më parë
So that's what my tongue and lower lip look like slowed down when I make fart noises...
Massage Dot Melbourne
Massage Dot Melbourne 4 ditë më parë
This one is absolute wall to wall 24-carat GOLD. A masterpiece. Just wonderful. Love your work, Ze.
d_piyush 4 ditë më parë
No animals were harmed during the filming of this video but they died because of laughter 😂😂
futsk01 4 ditë më parë
Ok that at the end was just excessive.
Chris MacLean
Chris MacLean 4 ditë më parë
These documentaries are so fukking awsome!
Travis B
Travis B 4 ditë më parë
"It's called an HR violation." That one got me good.
Kevin Perry
Kevin Perry 4 ditë më parë
I hate this, and I love this
deanthebean gaming
deanthebean gaming 4 ditë më parë
I’ve watched this about a dozen times, it’s just so great
Nothsa Rekcap
Nothsa Rekcap 4 ditë më parë
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.
Devilofether 4 ditë më parë
6:17 sorry, still here, and now I have subscribed
Higor Araújo
Higor Araújo 5 ditë më parë
"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!
Long Hoang
Long Hoang 5 ditë më parë
the outro is epic
Andrew Pearson
Andrew Pearson 5 ditë më parë
OK like if you stuck out your tongue and tired to flick it up and down when he said that hahaha
Meru Me
Meru Me 5 ditë më parë
hey remember ur teddy bear operation vid, haha. i watched that when i was like 6 👋 anyway hello again sir
Timi Haze
Timi Haze 5 ditë më parë
The human tongue was the most disturbing
Kerry Godbout
Kerry Godbout 5 ditë më parë
I had to pause midway through because I laughed so hard I spit my noodles onto my computer.
rasheed gregory
rasheed gregory 5 ditë më parë
Dude I love your videos. I formative and extremely hiladious
Angela Bartlett
Angela Bartlett 5 ditë më parë
"...HR violation." You are a funny man. xD
Diadorim 5 ditë më parë
I love this man and his content with every fiber of my being
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