Shark Attack Test- Human Blood vs. Fish Blood
Mark Rober
I personally got in the water and tested if Sharks had a preference of human blood vs. fish blood. Get your first month of KiwiCo for FREE!!!
Also, thanks to Discovery for putting my life in danger. #SharkWeek begins August 9th.
Catch ME in ShaqAttack Monday, August 10th at 9p ET only on Discovery.
Here is a link to that tiny exercise machine I was using the the jet. Luke (my shark expert buddy) invented it and it's really clever. He's launching a Kickstarter really soon-
***Music info coming soon***
Here is a talented up and coming artist named Kenyi. Check him out!

  • Mark Rober
    Mark Rober

    Sorry this took awhile. I've got 8 absolute banger videos I'm currently working on through April 2021 but it turns out the Rona slows things down a bit. They will be worth the wait! For updates, follow me on social stuff @MarkRober.

    • Karez Batangan
      Karez Batangan

      Don’t Read My Profile Picture! ✔︎ II

    • Fair Play
      Fair Play

      1. You are not using actual human blood. 2. The fish 'blood' contains more than just blood, as you've added fish paste to it. The results from this test are basically invalid.

    • Eliza Robertson
      Eliza Robertson

      This was by far my favorite of your vids Mark!! Happy to wait longer if all of your future vids are this entertaining!!

    • Mary Lun
      Mary Lun

      No worries. Love the video :3

    • Braden Battershell
      Braden Battershell

      Try the same thing but with crocodiles

  • Olivia Shorrock
    Olivia Shorrock

    you are crazy

  • Seyair M
    Seyair M

    Mark the type of guy to experiment something that other people will not do

  • Bey Han
    Bey Han

    H.S twelve million views in a 13 mil subscribers channel within 24hours ! Great F.Job !

  • Areo

    Dude escaped death two times in this video. The random Corona positive test and then then sharks incident lmao

  • Rory Balloch
    Rory Balloch

    why he swim like that

  • Gabriel Bravo
    Gabriel Bravo

    You could've had a knife for protection

  • Salad

    How do you beat the rona?

  • Dalton Horn
    Dalton Horn

    the real question is how he got the human blood

  • Lennox Shirk
    Lennox Shirk

    You have a private jet

  • AppleMuks

    DEFINITELY worth the wait !

  • pretty Pets
    pretty Pets

    My channel shares funniest and cutest pets ever if you’re a pets lover or have one, then come take a glance there thanks 🐶🐐🐕😻

  • DeAndrew Dodd
    DeAndrew Dodd

    12 million views in one day this deserves #1 on trending

  • emprrah

    @9:57 looks like dude be going heavy on the soymilk


    I feel bad for fishes.😢😢😢😢😢

  • Abdul Rehman101
    Abdul Rehman101

    Dude had a private jet to get covered by sharks in middle of the ocean I love this guy

  • Xnvy Sweats
    Xnvy Sweats

    I wish u did more than monthly uploads


    Being honest dude perfect is my favourite JPflow channel.😅😅😅

  • Gamer 3733
    Gamer 3733

    I really hope youtube didn't strike mark for saying corona also MARK YOU BAFOON YOU NEARLY DIED THEN WHO WOULD I BINGE WATCH ON FRIDAY NIGHT?!?!??

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  • irmalair1

    15:45 What employers are looking for these days.... four hundred million years of experience... lol

  • Mintmilkshake

    Is that shaq?

  • llJordynnll

    Number 1 on trending btw keep your head up man😁

  • vamp stamp
    vamp stamp

    Wow didnt know u had it glad u were able to beat it

  • johntheyt

    other youtubers be like no fish were hurt these guys blend a fish lmao

    • Skyett

      Well to be fair the fish were dead before the blending

  • Because Ican
    Because Ican

    Those fishes could’ve fed my family for a month.

    • Because Ican
      Because Ican

      Skyett now who stepped on your big toe?

    • Skyett

      Then go catch your own fish. Is he supposed to ship them to you or what?

  • irmalair1

    How come I never found out about you before! LOVED THE VIDEO !!

  • Zelda Meliodas
    Zelda Meliodas


    • kwan kit cheung
      kwan kit cheung


  • Martian Magician
    Martian Magician

    All I want is a husband like Mark...

  • Gavin Clark
    Gavin Clark

    What about a lot of blood, not just a little bit

  • Weismann

    Dont scared me like that bro.. I have weak heart😂

  • Altoren

    If this comment gets pinned I’ll subscribe.

    • Skyett

      That's a lot to ask for for just a subscriber

  • A Channel
    A Channel

    HoMe DePoT bUcKeT!!!!!!

  • The Patrick Fam
    The Patrick Fam

    Slorter house be like

    • Skyett


  • Laxus 2.0
    Laxus 2.0

    Mark Rober:“Cause there no longer accepting any commercial flights from America,cause where number one baby” Me:wash your hands or soap it

  • Daniel Sitterle
    Daniel Sitterle

    Vegan: no you can’t just kill fish for its blood Mark: haha fish goes “brrrrrrrr”

    • The Neon Llama
      The Neon Llama

      Well it was dead

  • eddy van malderen
    eddy van malderen

    Where did he get all that blood?

    • Skyett

      Cow blood. Slaughterhouses have it.

  • cool stuff
    cool stuff

    How does mark not have more subscribers than this his videosareinteresting funny and definetly good for a bored person to watch

  • AsteroidGem8044

    Could you make a device that could allow you to move the four elements (fire,earth,water,air) ofc like the avatar or talk about the science behind it?

  • Jayden Washington
    Jayden Washington

    I am so happy the u survived COVID-19

  • A Channel
    A Channel

    Maybe if we just blend the fish? Me: ArE yOu GoInG tO bLeNd A hUmAn

  • mkgcbeauty

    I seen this along time ago

  • Rick Martin
    Rick Martin

    Bad form mate. your teaching sharks to associate food with humans thus increasing shark attacks. Shark feeding is banned in a lot of places for this reason.

  • Arisleida Damian
    Arisleida Damian

    Anyone else questioning where they are just causally getting a bucket of human blood?

    • My Mixed Biscuit
      My Mixed Biscuit

      It’s not human blood he used cow blood because human blood was too hard

  • shinyeon23

    Get him

    • My Mixed Biscuit
      My Mixed Biscuit

      Why how ?

  • Akira RuoYan Sakura
    Akira RuoYan Sakura

    Mmm fish blood smoothie yum the most exquisite drink 🍷 (Also can we talk about how much balls he have for doing this with blood in the the water with him?!?)

    • My Mixed Biscuit
      My Mixed Biscuit

      Akira RuoYan Sakura ikr !😂😂

  • Rebecca Morio
    Rebecca Morio

    Yay 😁 😁 yay

  • Yel Clarito
    Yel Clarito

    Dude's been riding the private plane while on slippers. My first time to see this. 😂

  • Etienne Ekpo
    Etienne Ekpo

    12 Million views in a 24 hours... Worth sharking up

  • Red Pig
    Red Pig

    Your like mrbeast but more smarter

  • Roey Huang
    Roey Huang


  • XxShadow _PlaysxX
    XxShadow _PlaysxX

    Ooo~ Dude perfect is here!!

  • Kim the Cake
    Kim the Cake

    Team trees... Roblox and tear rite games

  • Bryan Ventura
    Bryan Ventura

    Bruhhhh homie got the rona and said I beat it and then went to meet some sharks

  • Akira RuoYan Sakura
    Akira RuoYan Sakura

    I'm just curious how he got the cow(“human”) blood

    • Akira RuoYan Sakura
      Akira RuoYan Sakura

      @Skyett I know that hinted at the the brackets and quotes on the word human

    • Skyett

      The shark experts said all mammal blood tastes about the same for sharks

  • NubPeanutNL

    but u were using ground up fish filletes

  • Aleksas Markelis
    Aleksas Markelis

    Fishy do not aprove

  • Ursula Seidel
    Ursula Seidel

    Man versteht nichts

    • Skyett

      Weil er auch Englisch spricht, ne?

  • Chinese food channel
    Chinese food channel

    a great video. You are brave

  • i love my papa
    i love my papa

    i didn't like the fish blundering part

  • Alexander Huang
    Alexander Huang

    Mark: Seeing Germs Mark: Getting Germs

  • Mythryl _
    Mythryl _

    love how im watching the fish grinding part while eating oreos 🤷‍♂️🤣

  • LUX 17000
    LUX 17000

    Hey im a diver aswel, but how do you talk while underwater?

  • Edgar

    How were you not scared 😱

  • Nyeve ¿
    Nyeve ¿

    Congratulations on #1 trending 👍

  • Lance Scott
    Lance Scott

    I really hope youtube monetizes this

  • Caden Coppo
    Caden Coppo

    Vegans seeing them get blood:👁👄👁

  • PeachyRoyales XoXoTeas
    PeachyRoyales XoXoTeas

    I have a question,are they okay-

  • Haitian Creole With Luciano
    Haitian Creole With Luciano

    *What the heck?*

  • Katie Reuss
    Katie Reuss

    At the same time I feel good and sometimes I feel bad because literally you're hurting the fish is so bad

  • rexius775

    How does this dude get 12 MILLION VIEWS IN A DAY

  • Julia Russotti
    Julia Russotti

    Vegans boutta go craaazzzy in the comments lmao

  • Idk Idk
    Idk Idk

    The budget of this video was so high he needed to sell his diamond armor and use chain mail

  • Herman Reeves
    Herman Reeves

    Shaq, Mark Rober, and Dude Perfect. Biggest crossover of the century.

  • Quahid

    Vegans watching this video 👁👄👁

  • Jack Walker
    Jack Walker

    this man beat rona like it was nothing that’s hopeful

  • pyrosdestiny


  • Rainbow Fam
    Rainbow Fam

    This is making me shake!!!! I’m so scared and it’s kinda disgusting

  • iTz Gjeloshi
    iTz Gjeloshi

    *this video proves that my life sucks*

  • Benjamin Cutts
    Benjamin Cutts

    Wow, this #1 on trending, good job Mark

  • Ole Christensen
    Ole Christensen

    Jemand Deutsch?😅🤣

    • Skyett


  • Zixxi

    This came out already...

  • Reckless

    Ютуб опять ломает тренды?

  • Loli Feli
    Loli Feli

    Who gave em blood

  • Alperen Erol
    Alperen Erol

    I think the sharks were an excuse to go on a holiday in the Bahamas with the whole resort reserved to Mark.

  • The Labeezy Fam- kid edition
    The Labeezy Fam- kid edition

    You defeated the Rona

  • F I N N
    F I N N

    Another insane views for a shark video Mark. 1 day with almost 13m views? INSANE

  • Conor Barrett
    Conor Barrett

    Is that Sharkuille O'Neal

  • Extraterrestrial

    Istg I hope mark doesn’t die doing something like this


    How many fished did you killed


    Who else get turned on by a topless mark?

  • vishal varma
    vishal varma

    Title should be cow blood vs fish blood

  • Galaxy Potato
    Galaxy Potato

    I will never do this

  • 50 1 subcribers with no video challenge
    50 1 subcribers with no video challenge

    I just surprised that no one was talking about how mark got rona

    • Harsh Beniwal 2.0
      Harsh Beniwal 2.0

      I also

    • Skyett

      Stop stealing comments smh

    • Daily news
      Daily news


  • Mushfiq Hossain
    Mushfiq Hossain

    Bonjour to all those vegetarians that will be triggered after watching this....

  • Robloxmystery67

    mark is on shark week

  • Spencer Thunder
    Spencer Thunder

    This is cool but that bit with the fish killed my hart. I love all animals too much. Also im glad your ok and didn't get too heavily affected by the virus

  • Arav Playzz
    Arav Playzz

    He must be real brave to get in that cage

  • 50 1 subcribers with no video challenge
    50 1 subcribers with no video challenge

    Just wondering his wife kill him after this or it's still alive

    • Harsh Beniwal 2.0
      Harsh Beniwal 2.0


    • Daily news
      Daily news


  • Nutifafa Kpe
    Nutifafa Kpe

    No Mark you should have said:”As humans if we see the words:shark and blood in the title of a video... ...It will become number one on trending”