True Facts: The Curious Adaptations of Sharks

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Special Thanks to:
Save Our Seas Foundation, saveourseas.com
Dr Barbara E. Wueringer, Sharks and Rays Australia
In Australia please report your sawfish sightings to www.cytags.com
Dr George Lauder, Harvard University, / georgelauder
Jonathan R. Green, www.galapagoswhaleshark.org
Dr David Gruber, / davidfgruber
Dr Andrew Chin, James Cook University
Dr Dean Grubbs, Florida State University
Dr Brooke Flammang, New Jersey Institute of Technology
Marco Carè : TGI Maldives-TGI Halaveli
Anna & Ned DeLoach, www.blennywatcher.com/
ZooWild KZbin, / @zoo_wild
Florida Scuba Divers, / @floridascubadivers
Julie Higgs, / @juliehiggs_spearfishing
WizardBeaver, / @wizardbeaver
Fat Fish Movies, / @fatfishmovies
AboveDeck, • Hammerhead shark almos...
Rdearphotography, • Did you know some shar...
NOAA
Smithsonian Institute
Airflow across a wing: • Airflow across a wing
Citations
Amir Akbarzadeh & Borazjani Iman
- Controlling flow separation using traveling wave actuation.
Ouro, Pablo & Stoesser, Thorsten & Ramirez, Luis. (2018). Effect of Blade Cambering on
Dynamic Stall in View of Designing Vertical Axis Turbines. Journal of Fluids Engineering.
140. 061104. 10.1115/1.4039235.
Domel AG, et al. Shark skin-inspired designs that improve aerodynamic performance. J R Soc Interface. 2018 Feb;15(139):20170828. doi: 10.1098/rsif.2017.0828.
Duchatelet, Laurent & Marion, Raphaël & Mallefet, Jérôme. (2021). A Third Luminous Shark Family: Confirmation of Luminescence Ability for Zameus squamulosus (Squaliformes; Somniosidae). Photochemistry and photobiology. 97. 10.1111/php.13393.
Du Clos KT et al. Passive bristling of mako shark scales in reversing flows. J R Soc Interface. 2018 Oct 24;15(147):20180473. doi: 10.1098/rsif.2018.0473.
Gruber, D., Loew, E., Deheyn, D. et al. Biofluorescence in Catsharks : Fundamental Description and Relevance for Elasmobranch Visual Ecology. Sci Rep 6, 24751 (2016). doi.org/10.1038/srep24751
Josberger EE et al. Proton conductivity in ampullae of Lorenzini jelly. Sci Adv. 2016 May 13;2(5):e1600112. doi: 10.1126/sciadv.1600112.
Kempster RM, Hart NS, Collin SP. Survival of the stillest: predator avoidance in shark embryos. PLoS One. 2013;8(1):e52551. doi: 10.1371/journal.pone.0052551.
Mallefet, Jérôme et al. (2021). Bioluminescence of the Largest Luminous Vertebrate, the Kitefin Shark, Dalatias licha. Frontiers in Marine Science. 8. 10.3389/fmars.2021.633582.
Park HB et al. Bright Green Biofluorescence in Sharks Derives from Bromo-Kynurenine Metabolism. iScience. 2019 Sep 27;19:1291-1336. doi: 10.1016/j.isci.2019.07.019.
Payne, N., Iosilevskii, G., Barnett, A. et al. Great hammerhead sharks swim on their side to reduce transport costs. Nat Commun 7, 12289 (2016). doi.org/10.1038/ncomms12289
Rohner CA, et al. Laser photogrammetry improves size and demographic estimates for whale sharks. PeerJ. 2015 Apr 7;3:e886. doi: 10.7717/peerj.886.
Sato, Keiichi, et al; How great white sharks nourish their embryos to a large size: evidence of lipid histotrophy in lamnoid shark reproduction. Biol Open 15 September 2016; 5 (9): 1211-1215. doi: doi.org/10.1242/bio.017939
Sims DW, et al. Circles in the sea: annual courtship "torus" behaviour of basking sharks Cetorhinus maximus identified in the eastern North Atlantic Ocean. J Fish Biol. 2022 Nov;101(5):1160-1181. doi: 10.1111/jfb.15187.
Tomita, Taketeru et al. (2018). Locomotion is not a privilege after birth: Ultrasound images of viviparous shark embryos swimming from one uterus to the other. Ethology. 125. 10.1111/eth.12828.
Tomita T, Murakumo K, Komoto S, Dove A, Kino M, Miyamoto K, Toda M. Armored eyes of the whale shark. PLoS One. 2020 Jun 29;15(6):e0235342. doi: 10.1371/journal.pone.0235342.
Weigmann S, Kaschner CJ, Thiel R. A new microendemic species of the deep-water catshark genus Bythaelurus (Carcharhiniformes, Pentanchidae) from the northwestern Indian Ocean, with investigations of its feeding ecology, generic review and identification key. PLoS One. 2018 Dec 12;13(12):e0207887. doi: 10.1371/journal.pone.0207887.
Williams LH et al. Sharks as exfoliators: widespread chafing between marine organisms suggests an unexplored ecological role. Ecology. 2022 Jan;103(1):e03570. doi: 10.1002/ecy.3570.
Wueringer, Barbara E.et al. The function of the sawfish's saw, Current Biology, Volume 22, Issue 5, 2012, Pages R150-R151, ISSN 0960-9822, doi.org/10.1016/j.cub.2012.01....

[@zefrank]

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[@Shampoid]

Sure

[@themilkman993]

Great choice of thumbnail

[@SwordOfS]

If I only subscribe for the free month and run away before they catch me for the whole year, do I get my 20% off. It would be 20% of nothing, but it's the thought that counts. I could give that thought to someone I don't really like, like......my in-laws! Yes, it's the perfect gift for them. Or even better, I'll give it to them after I use the free month. Thank you for the idea, Ze Frank. You are 20% smarter than me.

[@redmuskratt]

Fun fact: There is a venomous freshwater shark called a Spiny Dogfish or Spurdog shark.

[@stevechance150]

4:19 God damn it! I was drinking coffee! Now I have coffee all over my phone. You should put a "spit take" warning at the beginning of this video.

[@HalfUnder]

I'm still waiting on True Facts: Jerry.

[@lucabeard532]

Oh my god! Yesssss!!!

[@TrilainaBloodwind]

If Frank does decide to stop doing these videos because of all the crap going on with KZbin, that should be the final video.

[@thatwanavy566]

Jerry is an animal that is not an animal, Jerry is Jerry 🤡 This is just a joke please forgive me

[@vapormissile]

​@@thatwanavy566Jerry has a forgiveness gland. He wants you to look for it. No, not THERE...

[@dreamsinjan2293]

I concur.

[@scuttles368]

As a physicist, I will never refer to turbulence as anything other than 'mushy-mushy' ever again.

[@rejvaik00]

What about swirly - swirly?

[@raeperonneau4941]

😂

[@margomargo2]

😂

[@misteral9045]

As a wastewater/water treatment operator, the turbulence in my water is most often caused by "mushy-mushy."

[@MarciaBaker1205]

😂😂😂😂😂

[@autumn_equinox]

“Ready? *shark eye retracts* YOINK!” NO. NO I WAS NOT 😂😂

[@a.h.5296]

Me too. Lost it 🤣

[@strega0]

"Fellatio not yet realized." Thank you, Frank. That was beautiful.

[@ClipperHorizon]

"Many sharks can swim quite quickly. This comes in handy, because sharks live in places where there are sharks." This is both hilarious and profound. I love your writing.

[@magmafeline8239]

They not wrong

[@gravel9270]

Well smaller sharks needs to watch out for bigger sharks.

[@ConstantChaos1]

The walking one can survive out if water a long time and walk on land js It's also tiny tho it could at max take a hand/foot But yeah 30 meters and 2 hours of hypoxia so yeah

[@fuzyfuzfuz2]

😂😂😂 I laughed harder at that than I should have

[@darkdragoness5]

Considering he was previously talking about how some shark babies eat each other... It is very profound

[@dm9910]

"sharks live in places where there are sharks" is definitely one of the True Facts of all time

[@mjbull5156]

For a shark, hell is definitely other sharks.

[@AWAKEBUTNOTWOKE]

Rotflmfao

[@opposumness3107]

For the first time - in what feels like years - the Morbius saying got a chuckle out of me. Kudos 👏

[@justadildeau]

That's the Gerber baby!

[@nothingness95]

Read that as u typed this quote up XD

[@Crosier5961]

Love how you couldn't get the Gerber baby line out without laughing a little

[@kraneiathedancingdryad6333]

Not only do you make the topic fun and interesting, you take the time to cite references in true science hippie fashion. 🦈

[@LunarShimmer]

"Science hippies dented these testi - sorry. Tested these denticles -" Zefrank just keeps hitting bangers lmao

[@rejvaik00]

But he forgot to say how the shark.....do 😭

[@BrendavonAhsen]

I want a "Science Hippy" T-shirt.

[@MK-dr7dx]

​@rejvaik00 I mean, he talked about baby sharks, and we all know how baby sharks do...do do do do do do.

[@rejvaik00]

@@MK-dr7dx what?

[@lizzzturner]

​@@rejvaik00has no contact with children under the age of 5 😂 iykyk

[@lftr_react]

"Every time you see a shark your ear whispers to your nose, 'that could have been us'". Thank you Ze Frank! I never knew why the hell they kept doing that until today!

[@burtan2000]

Huh. For me, it's me nose whispering to one of me ears bc NOSES CAN'T HEAR. But ears can hear

[@fuzyfuzfuz2]

😅😅😅😅😅😅

[@philosophy_bot4171]

Beep bop... I'm the Philosophy Bot. Here, have a quote: "Whosoever is delighted in solitude is either a wild beast or a god" ~ Aristotle

[@NightMystique13]

Made me giggle out loud!! Maniacally , a bit.

[@lisachiappetti6092]

Right it's so annoying 🙄 I'm glad I finally got an answer for it too!

[@ericpmoss]

Imagine being a teacher showing this to a class of 10th graders and the principal walks in during the outro. A moment of zen.

[@mowolf2620]

My girlfriend is a biologist and she introduced me to Zefrank. I know a thing or two about sharks myself just because they have always fascinated me and I have to say this video is just pure gold :D

[@leppeppel]

Many species of shark are also highly intelligent (in a relative sense of the word), and like a curious toddler, they investigate things in their surroundings by putting them in their mouth. I call this process "ingestigating."

[@dragoncubes1074]

Very good. I like that.

[@bruceshark5501]

I like it.

[@ninjapotatolorf6237]

That too is how I investigated things as a toddler

[@Trund27]

This needs more upvotes!!

[@emanuelrojas2]

ZeFrank would be proud of that line.

[@csours]

If you've ever watched a Ze Frank video, you've learned how much of a freak Jerry is. But you've also learned a lot about animals.

[@Clovergirl143]

Plot twist, Ze Frank is the freak and just does these jokes to make Jerry flustered LOL

[@3nertia]

@@Clovergirl143 I think they're both just Ze Frank xD

[@scrappydoo7887]

@@3nertia 🤣👏

[@queenbee3647]

I suspect Jerry has an OnlyFans account or two.

[@carmengogeidnas9670]

Jerry is a drunk who doesn't pay his child support, screws up at work and he owes the IRS $15,000. I don't know why Zefrank put up with him after all these years 🤦‍♀️

[@mariannetfinches]

I love these for the combination of well referenced science with high production value, and d*ck jokes. Thank you for making lots of nerds unreasonably happy 😁

[@jenpink4298]

😂👍

[@huski_ruski]

I burst out laughing at your rendition of the swordfish 😂 I said the same exact thing, right on cue! *waves sword in the air* YAYAYA!

[@ianmacfarlane1241]

*Sawfish. Swordfish are the ultra fast fish that superficially resemble Marlins.

[@Umbraqua]

En garde!

[@justhearmeout3959]

"Look out shark. Everyone walk at a moderate pace in the other direction"😂😂😂😂

[@rainydaylady6596]

It would make a really boring movie. 🤣😂🤣🖖💕

[@redwitch12]

@@rainydaylady6596 "Coming to theaters this summer: a relaxing shark movie aimed at the easily frightened and overly anxious."

[@j.d.e.7416]

Not scary, until they walk up , ring your doorbell, and say, "Landshark!" Then it's a horror movie.

[@Peusterokos1]

Fun fact about the cookie cutter shark: They, during the Cold War, helped maintain the high tension between the US and USSR by attacking their submarines as they mistook them for whales, resulting in both nations thinking their adversary had found a way to sabotage their vehicles deep underwater. Thus meaning there is a timeline where we nuked ourselves due to those little whimsical rascals.

[@pinkmoonjuice5158]

"Little whimsical rascals" 😂 That's great

[@achair7265]

The US had to switch the material of what was being nibbled on by them.

[@DustyHoney]

It’s absolutely fascinating to me that people claim they spin to make that shape. I’ve heard it my whole life but there’s literally no evidence. No one has ever seen it, or even claims to have seen it. Weird as hell.

[@Tylendal242]

Came back to this video just to see the bit with the epaulette shark again. Was thrilled to see my favourite shark show up. Basically sea pigeons, choosing to walk everywhere, and constantly looking for bits of food.

[@slwrabbits]

gotta admire that very confident boss walk

[@themosaicshow]

sea pigeons go so hard…

[@seigeengine]

Personally, I think the most intuitive way to understand how wings/fins work is as something that deflects the fluid it passes through down. A plane goes up because it pushes air down. A fish goes up for the same reason with water. The tricky part is that part of how wings often do this is that they also cause the fluid that passes over them to deflect downwards, due to things like boundary layer effects. This can all be modeled in pressure but pressure is generally a lot less intuitive for people.

[@Shimahou]

The script switcheroo is always my favorite joke in all of these. "Dented these testicles" "Tested these denticles" 😭💀

[@xTiessieman506x]

I have been laughing at that one for 5 minutes lol

[@DRKLCNS1]

my favorite is whenever he says "Butt X.... sorry, But X" and then in one episode he mixes it up and does But to Butt because it was relevant

[@Envrionmela]

"but doctors" and the correction to "butt doctors" is hilarious to me and idk why 💀

[@DRKLCNS1]

@@Envrionmela a combination of "the expectation was flipped" and "haha butts"

[@robwalsh9843]

Just remember, the cute little shark pup you see while snorkeling is actually a ruthless family murderer who killed more of its siblings than the average Roman senator.

[@tabithamotta8753]

This comment wins a blue ribbon

[@MorganBondelid]

👏🤣🏆

[@NueUzrnem]

someone on reddit said "zfrank1's channel is what we imagined documentaries would be like"

[@SoupEaterExtraordinaire]

So cool to finally learn the science behind how denticles make sharks smooth.

[@DanGamingFan2846]

When you learn that the scariest things about sharks *isn't* that some of them can tear you in half. They possess some of the craziest adaptations in nature, and I love them.

[@bruceshark5501]

Thanks, we love you too.

[@pyropulseIXXI]

I could easily take a shark in a fight; it would swim at me, I would dive and hold against its nose so it cannot bite me whilst I gouge its eyes out. I''ll be taking bets against me, since you fools think this impossible when punching shark noses is already proven to be effective. The killer is people panicking and just letting the thing eat them, like what happened in Egypt recently (poor guy).

[@spectrebond5119]

@@pyropulseIXXIor you could just leave the shark alone

[@NinjaFalllow]

Yeah, they're a lot cooler than I knew!

[@pyropulseIXXI]

@@spectrebond5119 no way, I'm setting up shark fights for gambling purposes. Winner take all, loser dies

[@melvinshine9841]

Also worth noting that cookie-cutter shark's bottom teeth are the biggest in comparison to their body size of any shark. They also just swallow their teeth when they're about to shed them. And they almost caused an international incident between the US and Russia during the Cold War. Cookie-cutter sharks were taking chunks out of the rubber sonar cones of nuclear submarines, but the US and Russia didn't know that at first and both sides thought the other was up to some kind of sabotage.

[@metalmamasue3680]

"Mutant zombie penis vibes" 🤣🤣 I will never think of cookie cutter sharks the same again 😅

[@emilysmith2965]

Shark sees a submarine: ooo yummy USA: those damn Russians

[@gama343]

There used to be a video here on youtube of a cookie-cutter shark doing the spin-move super bite on the side of a submarine. Submariners have found the circular marks of cookie-cutter sharks grinding their teeth flat on the hulls of their submarines for a long time before we even knew what they were.

[@zach11241]

It wasn’t an accident. The Cookie Cutter Shark Gang knew exactly what they were doing.

[@PossibleBat]

Considering Russia is known for training dolphins and orcas, I wouldn’t be surprise they somehow got the sharks as well lol

[@raeneal3825]

My family & I appreciate you for doing what you do. Thanks!

[@zefrank]

Thank you!

[@ivanstrydom8417]

Learning about the intricacies of LIFT,DRAG and fluid dynamics during my CPL studies as well as when relaxing and watching ZeFrank. It's a win win situation! Such brilliant content sir. Please never retire.

[@I1like1wood1ash]

I know you didn't mean it literally, but everyone deserves retirement at some point and I just had to say that because they keep pushing back the age of retirement and I'm mad as hell about it.

[@dannyarcher6370]

Spotted the Saffer.

[@welphe]

"It looks cute doesn't it? Rubbing against that veiny sack." Giving a great impression to new viewers as always 😔👌

[@Vohlfied]

True Facts is not appropriate for children nor adults who don't act like children.

[@scrappydoo7887]

I love how you are extremely immature but incredibly intelligent and informative at the same time 👍

[@NightMystique13]

The perfect mix.

[@npcx-mq6cr]

well, he IS a neuroscientist

[@scrappydoo7887]

@@NightMystique13 it really is. We're learning without even really feeling like that's what's happening lol Excellent entertainment with high quality information/education

[@scrappydoo7887]

@@npcx-mq6cr I didn't know that 👍 thank you, that explains a lot

[@zeffmalchazeen3429]

one of the reason I learn a great deal about animals by watching Wildboyz

[@sophierobinson2738]

True Facts are very educational. I grew up watching Mutual of Omaha’ Wild Kingdom. Tho only thing I can remember is that Jim pretty much always got the short end of the stick, handling animals.

[@moniqueengleman873]

Frank Ze just never disappoints. I so enjoy his narration.

[@GoodStarfish]

how is 15 minutes of Ze Frank more informative than 5 weeks of shark week

[@kelvinelrick807]

Shark week is drama and Ze Frank is pure facts

[@dlmsarge8329]

So true!

[@shaneenanderson9958]

@@kelvinelrick807TRUE facts!

[@yamahadrag69]

Sometimes I wonder how much more educated I could've been if public education made learning even half as fun as this man does. 😂

[@ryuuguu01]

And that is why he makes school-safe versions now. So that the new generation can be better educated than us.🙂

[@freechilli8755]

@@ryuuguu01 Wait, so what you're saying is that testicles, penis and mushy-mushy aren't school safe? /s

[@ryuuguu01]

@@freechilli8755 I am pretty sure that there are places where parents can sue and get teachers fired for saying mushy-mushy.

[@TheJerbol]

Unfortunately learning isn't just learning awesome facts in a comedic format, I wish it was

[@azilbean]

We all wonder that too!😅❤

[@damienk5011]

"You saw that didn't you- that's the Gerber behbeh!"do so love Zes monologues 😊❤laughing and learning!!Thankyou for all your videos! Best wishes, J.I.M.K Mrs. Brisbane, Australia. ❤ 🇦🇺 🪃 😊

[@mattfleming2287]

Have to say, I always learn a lot from these videos. Zefrank, your songs are amazing. Thanks for making the internet what it’s supposed to be. Entertaining and educational.

[@jakeofalltradesmusic]

"If you've ever been in a water park wave pool, then you've felt what it's like to be covered in urine." That was so out of nowhere, I can't stop laughing. 🤣

[@natedogg..2324]

That was my favorite joke it came out of nowhere but is definitely true

[@rxg9er]

Pool chlorine is odorless. That "chlorine" smell is caused by pool chlorine mixed with urine.

[@musicaccount3340]

@@rxg9er to be fair, it's also sweat and body oils, not just urine.

[@ryutou-ki4dl]

@@rxg9er lmao no its not, have u ever smelled chlorine tablets/powder? its definitely NOT odorless

[@colinyandon6137]

I was laughing so hard, I accidentally gave your comment a thumbs down.

[@wizardbeaver]

Thank you Ze Frank and team for showcasing our horn shark egg video - we have been a fan of true facts series for years! Total dream come true!

[@veggiemanx]

That was a beautiful looking Horn Shark Egg Case!

[@zefrank]

It's wonderful footage! Everyone go check out @wizardbeaver! (Never thought I would say that phrase!)

[@wizardbeaver]

@@zefrank thanks for the shout out!! There is a first time for everything! 😂

[@NorseForse]

I mean… who in their right mind would turn down an opportunity to check out any damn thing by a thing called WIZARDBEAVER!?!🎉

[@cezannejimenez7164]

0:50 Actually that’s a Crested Hornshark eating the egg of a Port Jackson Shark.

[@tcroncero]

These videos may be the most entertaining nature videos - period. The writing is just so so good, while still be incredibly educational. Each video is just pure genious.

[@aco2518]

I love how the thumbnail unapologetically displays a pair of proud shark claspers lol. Love it

[@cleverusername9369]

I love it when Ze Frank giggles at his own jokes and provides commentary about his own script 😂

[@OscarLisboa]

Jerry always trippin

[@agoogleuser2507]

Is no one talking about the dick song at the end there?

[@spinningpeanut]

Genuinely I was like "Oh my god he used the dick song.....wait that's his song that's right!" It finally came in handy.... Stop it.

[@themosaicshow]

doesn’t jerry write part of the script?

[@elizamccroskey1708]

Jerry is also Ze / Ze is Jerry. 😂

[@dylanaroberts97]

“If you’ve ever been in a water park wave pool, then you know what it’s like to be covered in urine”. LMAO

[@ahuman6277]

this part made me laugh so hard I couldn't hear what he was saying for like 20 seconds

[@enderfal]

Yea had to pause the video a bit on that one.

[@mediumsurmoon6283]

I’ve met a kid once that jumped into the pool and immediately peed in it like it’s her designated toilet or something, she was like 12-14 too. This is why I can never swim with too many strangers around especially kids and teenagers

[@anondecepticon]

And then he followed it up with, “If you’ve ever bobbed for apples, then you know what it’s like to have a mouthful of other people’s saliva.” 😂

[@SuziQ.]

@@mediumsurmoon6283, Don’t they have a dye for that now, so the pool pee-er can be identified? My Labrador gets out of the pool to pee!

[@PaintedDog]

Ze Frank needs to make a play list of all their songs. Id buy it. They're all really catchy

[@tadesubaru1383]

sharks are so smooth.... the smoothness of shark skin is supreme

[@jimwillis437]

More and better information than all of shark week.

[@The1Critic2]

Amen

[@ecurewitz]

ZeFrank > Shark Week

[@TimeBucks]

It honestly makes my day when a new episode gets released.

[@sachinnath770]

Good

[@ghazalafareed4733]

Good

[@TimePass-xj9kw]

Nice

[@Egroeg]

Yeah

[@bipinverma-us3jk]

Good

[@DiscoChixify]

So glad that you give credit to the people who created the source material you used and the people who helped do research with you for the video. You’re the best. Keep up the good work ❤.

[@UvThe1st]

Had no idea about the cartilage or the denticles! Thank you so much this was a truly fascinating episode ❤️

[@frankiebelle]

I used to be terrified of sharks but, learning that they are just glow sticks with teeth is helping

[@ConstantChaos1]

The walking one can walk 30 meters on land and survive hypoxia (lack of oxygen) for 2 hours, however they are less than 1 meter long so you can walk a dog sized shark on the beach and I mean actually walk it

[@douggaudiosi14]

Two species are. They're still murder missiles

[@dandylionwine]

"Personally I prefer my conveniences be a bit farther from a set of teeth" sounds like a long-established proverb that I've never heard before. Great turn of phrase.

[@leslieleslie6590]

"Look out shark! Everyone walk in a moderate pace in the opposite direction...."I love Ze Frank.

[@noelhutchins7366]

The Amazon river has too many species of catfish, including two species of Candiru, the small one was bad enough but the bigger-one framed piranha; after finding out piranha don't really attack healthy calm individuals, remember, something still exists that makes water appear to boil while exposing the skeleton of large prey in seconds, that really happens: I hope you can make an episode of those.

[@ziggymarlowe5654]

I appreciate science hippies so much more after finding True Facts.

[@dallasl3688]

True Facts is not appropriate for children, or adults who act like children

[@ziggymarlowe5654]

@@dallasl3688 😂A fair warning, right?

[@earthknight60]

As a science hippy myself I can only agree.

[@ludoviajante]

I could watch this man talk about any topic for hours 😂

[@philosophy_bot4171]

Beep bop... I'm the Philosophy Bot. Here, have a quote: "Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you" ~ Nietzsche

[@neuralmute]

@@philosophy_bot4171 So in other words, if we watch this video enough times we could all turn into sharks too? Sweet!

[@LoriCurl]

I saw him do a Ted Talks here online and he is just as awesome as he is here!!

[@ulflyng4072]

​@@neuralmute turn into Zefrank

[@npcx-mq6cr]

i have done this more than once, and i will do it again

[@VibrationCrystals]

"Thats the Gerber baby. Thats where they come from." I talked *so* hard! 😂

[@douggiles7647]

You are amazing and must be protected at all costs!! I don't know how you manage to keep every single video so informative and keep showing more comedic genius every time 😂

[@matesafranka6110]

Jerry must be an absolutely fantastic editor to have this kind of job security.

[@mrblack5145]

Shout out to all the awesome science hippies who made this incredible footage, ZeFrank is doing an amazing job showcasing how stunning and genital nature is, and he wouldn't be able to do so without your work. (Edited for proper nomenclature)

[@digitalbookworm5678]

I see what you did there. 😮

[@brianbrian1769]

@mrblack5145 We prefer the term science hippies.

[@sebs-shenanigans]

I also saw what you did there mate. Good one

[@nickymarch2914]

If you look hard enough…..

[@brianbrian1769]

@mrblack5145 We appreciate the amendment. Thanks.

[@nareeeely]

"Your ear whispers to ur nose that could be us" ... I hate why I like this channel

[@darkwynggryph7078]

Whale sharks are officially the adorable giant puppies of the sea 😂

[@frankG335]

As a biologist, I find your videos to be the same info as some of my undergrad lectures, but way more fun! Thank you!

[@TheBlueEyedScotsman]

I swear, this channel is the absolute PERFECT mix of highly educational and absolutely hilarious. It honestly makes my day when a new episode gets released.

[@lawrellcoupland6052]

Watched this to start my day off before work and laughed way too hard. Thank you for the hilarious dialogue that never ceases to brighten up my day. Keep them coming!

[@nun924]

Ze, Iwas a hardcore Sports Racer back in the day and just found all this content. I’m not only excited to watch cause it’s you, but that it’s you talking about natural science. I’m 300% chuffed rn. Thanks for everything you do. Now cross your fingers I don’t injure myself doing my old power move 🦆

[@maddieb.4282]

Omg Zefrank lore!! What are you talking about? I would love to know what he’s done before this

[@SuziQ.]

@@maddieb.4282, Just about everything. Wikipedia will give you some information, but maybe not the part where he’s a guitar player and had a band. I see that he’s finally added his “a show” videos to this channel. He did a show for a year. He’s also a published neuroscientist.

[@jonathanhoush2384]

When I volunteered at the local aquarium, I would describe swell sharks in our visiting tank with the patter of "These are swell sharks, they're swell!". The aquarium audience was mostly grandparents and grandchildren, so it usually got a laugh.

[@maddieb.4282]

I would have laughed!

[@littlespacesuit]

". . . but there's no evidence for that, and it's probably bullsh*t!" If only scientific papers and presentations could include such eloquent, decisive retorts.

[@tysonatkins2236]

I love how you still have a sense of humor while promoting the sponsor. As well as, sounding sophisticated and being hilarious at the same time! 👍

[@sarahdavis8006]

Sharks are actually very smooth, in both directions.

[@imalittleeggroll]

If I learned anything today, it’s that I’m not mature at age 43 because I giggled when you said “veiny sack”. Thanks Ze Frank ❤️

[@llofdarkwater9152]

I'm forty-seventeen. I giggled. I refuse to grow up.

[@englishatheart]

Nothing wrong with that. Stay a kid at heart. That (and my cats) is the only thing keeping me somewhat sane.

[@NightMystique13]

⁠@@englishatheartI am 58, and my 19 year old thinks I have lost it, I laughed so hard, repeatedly. Love all you do, Ze Frank.

[@naraferalina2308]

"Hammer heads have a whole bunch of these sensors. Up front on their faces, where evolution stepped on them." Best quote

[@terrymartin5839]

Sharks are among my favorite known ocean creatures! Thank you for another great episode

[@ashlibradford1821]

Another complete slay Ze!!!! Thank you so much for starting to make more videos!!! You never disappoint!!!! ❤❤❤

[@saveourseas]

This is Jawsome! It's so great to see sharks showcased on True Facts, which we have loved for years. It's been an absolute pleasure working with Ze Frank and his team on this hilarious episode, thank you!

[@jaysabol1821]

i used to be obsessed with sharks as a kid, and it's great to see a zefrank video on them! it gave me the same feeling of fascination and amazement i had as a kid along with making me cackle on more than one occasion. thanks for making this video happen

[@fjolliff6308]

Thank you for everything you do!

[@giangkim8789]

ok

[@thathero3736]

@@giangkim8789there’s always that one weirdo with the unnecessary comment. Dur

[@noteworthyinsignificance]

​@@thathero3736ok. 😊

[@tichu7]

The clip of an upside-down goldfish while talking about swim bladders was an amazing choice.

[@arynnbeefox3014]

love this channel so much. cant think of anything else that so perfectly caters to my need for both comedy and fun facts about animals

[@averyanderson6925]

I just came across your channel again. Still as great as ever! I remember coming across your channel 10 years ago at the start of the True Facts animal videos.

[@Bbbhdf]

The level of research and effort invested in these videos is truly astounding. Additionally, he manages to transform mundane topics into an enjoyable learning experience.

[@PLively]

WHAT? YOU MEAN I'M LEARNING!!!!!?????!!!!! ZeFrank is making us learn! GET HIM!

[@mariag.8242]

Who would take the word of a science hippie on mushrooms? Ignore that tosh about learning!

[@TaterFarmer]

The term “science hippies” never gets old. 🤣🤣🤣

[@maikopl]

This is the only YT channel that stopped uploading for a long time and I kept checking in on it until it came back. I LOVE to laugh

[@jessali83]

Your videos honestly are the best cure for a bad day at work! Thank you for always making me laugh 😂

[@bugtalk84]

This guy has quite a knack for being a comedian and an educator, that's quite a rare talent.

[@KingNast]

He's also a pretty talented singer and guitarist, if you didn't already know. I saw his band in Providence, RI in the mid 90's. Their bassist now plays with Blues Traveler. I had been watching these true facts videos for a while before I realized who he was and had seen him in person years ago

[@SteedRuckus]

Quite.

[@lacucaracha111111]

one of the best ways to learn , make it funny. Everyone rememebers : MYTOCHONDRIA ARE THE POWERHOUSE OF THE CELL cause it was turned into a joke

[@TimKapow]

In a 15 minute video ZeFrank has given us more info than the last 13years of Shark week 😮

[@apeshitclothing]

My new favorite nature channel

[@neko-nyuu]

I love hearing the narrator try not to laugh. These are always fantastic 😂

[@cheezemonkeyeater]

Islets of langerhans: part of the pancreas, apparently. I had to look it up because it sounded silly, but ZeFrank is very good about not giving me the false impression that something is true when it is.

[@JubioHDX]

thank you for taking one for the team and likely having to try to type that a few times before getting the right spelling

[@chrisdaignault9845]

Made famous in “My Pancreas” by Weird Al. 😊

[@the_once-and-future_king.]

They are indeed. Lot of responsibility for insulin.

[@samvimes9510]

@@chrisdaignault9845 that's exactly where I learned about it

[@llofdarkwater9152]

Now I need a Weird Al / Ze Frank collaboration

[@denisia1111]

Ze, Jerry, and the science Nerds, Thanks for taking all the facty facts stuff from shark week and breaking it down to 15mins. No annoying B-list celeb's makes it even better!

[@abbycross90210]

Science *hippies.

[@SteedRuckus]

Would you really be happier if it was Tom Cruise telling you about sharks instead?

[@denisia1111]

@@SteedRuckus Nope not a Tom Cruise fan. I was just making light of what Shark Week has become in recent years. Although I am biased being from Monterey Bay and a few of my friends have been featured experts on more than one of the shows. I don't mind a celebrity narrator but I'll skip the over the top ridiculous highly scripted nonsense Shark Week is changing into.

[@wyldchyld337]

Sharks: the smooth lions of the ocean You know, 'cause they're smooth. Like lions

[@Caligrowntrey]

I stumbled upon True Facts just recently. I tried going to sleep and couldn’t because I kept laughing. You make the world smile Ze Frank. Thanks 😊

[@hushedwoodsman2582]

10:51 I can't believe he just ate that other shark like that! Nature's crazy.

[@josiahhockenberry9846]

Okay, but can we talk about how Frank's outro's are always original bangers!? 😂

[@Ben-kg3sg]

I was looking for a link to the song too lol

[@quietone748]

@@Ben-kg3sg He writes them for these videos himself :)

[@prenticeclark1454]

Love the outro song! They’re always great but this one particularly tickled my dentacles. PLEASE release an album!!

[@englishatheart]

Why do people insist on putting apostrophes where they don't belong? It's "outros." 😛 Also, you don't have to ask permission before talking about something. Just say "Let's/I'm going to talk about how Frank's outros are always original bangers."

[@dinamonster00]

Your scripts are brilliantly clever and wildly hilarious!! I love when you don't edit out your own laughs.

[@linksbetweendrinks7032]

"Sharks live in places where there are sharks." Education at it's finest! zefrank finally did a video on my favorite animal... this is Nirvana. Thank you!

[@TrianglePants]

its

[@galaxia_6960]

Zefrank: Sawfish uses their rostrum exactly how you imagine it... *Demonstrates swordsmanship with accurate sound effect*

[@patkircher2552]

You never disappoint! 👍🏼❤️

[@RolodexEnigma]

Truly your best video. God bless you.

[@nicojar]

OMG THANK YOU ZEFRANK for explaining the lift effect properly! I can't take anymore this "the water / the air on this side is faster than..." and scientists know it's wrong for a long time now.

[@ConstantChaos1]

In air it also relies on creating a pressure difference, this doesn't apply in water, which is essentially in-compressible

[@absolutechaos13]

​@constantchaos4433 ...??? Yes, water is incompressable, but you can also create pressure differentials in water. This is how pumps, props, and faucets work.

[@ryancurtis5425]

Just goes to show sharks aren't the merciless maneaters you see in the movies. They're in fact very interesting! Also, SHARK POG! (10:50)

[@someoneudontknow3709]

Real sharks are more like sea derpsmore then anything and lemon sharks are straight up sea puppies

[@vapormissile]

​@@someoneudontknow3709who's a Good Boy

[@bruceshark5501]

We are pretty fascinating.

[@samiraperi467]

Sharks are less dangerous than cows.

[@Einwetok]

That's media for you, like the way generations of people are convinced lemmings are all suicidal cliff divers.

[@anthonywatson7735]

I can't get enough of these.....they're totally informative and more than a 'little' hilarious!

[@Ambarfing]

i love these videos...for so many years. thank you ze frank!!