Testing if Sharks Can Smell a Drop of Blood
Scientific proof Pixar sits on a throne of lies. Thanks to Bose for their support and for the dopest headphones I've ever worn: bose.life/markrober

Also, thanks to Discovery for putting my life in danger.
begins July 28 only on Discovery
FACEBOOK: facebook.com/sharkweek
TWITTER: twitter.com/sharkweek
INSTAGRAM: instagram.com/sharkweek/
ISdowns: isdowns.info

Links for the build instructions: www.dropbox.com/s/iqn14ydzqaf...

Sean's Hodgin's channel who did most of the heavy lifting for making the boxes: isdowns.info/window/E-b.html...

Pump animation made by the talented Jared Owens:

Connor was the beast feeding the sharks underwater. He has some amazing footage for licensing and his own ISdowns channel.
YT: isdowns.info/window/5fn.html...
email: sharkmanconnor@gmail.com
Insta: @sharkmanconnor

Follow my marine biologist friend Luke Tipple on Instagram- instagram.com/luketipple/

More info that was promised-
What is likely happening is that the sharks can smell the blood but it's just not in a quantity that is interesting to them especially since they don't love human blood that much (btw, I spoke with a marine biologist and mammal blood is all the same from a chemical marker stand point so cow blood is a suitable substitute for human blood). If I did the experiment again, I would want to test human blood vs. fish blood.

This is the most definitive study done to date in a control lab environment on what is least and most interesting to them: The Biology of Sharks and Rays Peter A. Klimley and Steven Oerding; ISBN-13: 9780226442495. Particularly pages 134-140. Figure 6.7; Table 6.2


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15:12 - Too Happy to be cool by Notebreak soundcloud.com/notebreak/dubs...

Summary: I've always wanted to test if sharks can really smell a single drop of blood in the water from 1 mile away. So I went to the Bahamas in shark infested waters and set up an experiment to get to the bottom of things.

They are soft- teespring.com/stores/markrober



I make videos like this once a month all year long while supplies last:

CHECK OUT MY CHANNEL: tinyurl.com/MarkRober-ISdowns

FACEBOOK: facebook.com/MarkRoberYou...

TWITTER: twitter.com/#!/MarkRober

INSTAGRAM: instagram.com/markrober/

  • Mischa bts and blackpink fan
    Mischa bts and blackpink fan

    The shark don't have teeth 😬

  • Nazif Khosyi
    Nazif Khosyi


  • geeta k
    geeta k


  • India Williams
    India Williams

    Hi I am bot223

  • FireBoy

    That’s scary

  • Adonnica Laabs
    Adonnica Laabs

    Blood makes me woozy maybe next time don't show so much blood 🥺

  • hydrolito

    Maybe he has to much garlic in his blood.

  • slowpoke

    mark i have a bucket of blood me how did you get the blood

  • Ali Jadiea
    Ali Jadiea


  • deepak kumarla
    deepak kumarla


  • Shawn Keenan
    Shawn Keenan

    Or nurse sharks because nurse sharks don't mess with humans

  • Simon-Pierre Drolet
    Simon-Pierre Drolet

    Sharks are Amazing🦈🦈🦈💙

  • 강남훈

    Oh yeah he just casually has contacts in the discovery channel

  • Schyler Roberson
    Schyler Roberson

    no humans were hurt doing the making of this video

  • Doctor Strange
    Doctor Strange

    Maybe some surfers have blood in their urine. Probably should get it checked out if a shark is attracted to your urine.

  • T1000 Terminator
    T1000 Terminator

    They should call these sharks “Geriatric Sharks” seeing as they’ve got no teeth!✌️😂

    • Goodbye BG
      Goodbye BG

      :`) s D:

  • Clarissa Mancera
    Clarissa Mancera

    I thought it will bit me but there Nice

  • ItsBart

    Ngl that bucket of blood got me a bit squeamish

  • Vali I. A.
    Vali I. A.

    How are you not scared of em?

  • K Ross
    K Ross

    Have you noticed the girl that was doing it on that video hurt her finger for a shark and the shark did not notice so she hurt her finger for no reason

  • Keyjana Lewis
    Keyjana Lewis

    But do it with great whites 👀

  • kehinde olayiwola
    kehinde olayiwola

    Where did the blood from?

    • IceyKidHD

      @Oleksandr Kopiievyi oh

    • Oleksandr Kopiievyi
      Oleksandr Kopiievyi

      Did you listen to the video? The first time they have used cows blood, and the second time they have used their own human blood

    • IceyKidHD


  • Mark Duff
    Mark Duff

    Shark: The human body is composed of 70% water... *and daddy's thirsty.*

  • O

  • {Re}

    Nice video i like it.

  • swathi duddeda
    swathi duddeda

    Sharks cool

  • James Gilmour
    James Gilmour

    Can we appreciate of how he risk his life for testing these experiments


    They see a massive tiger and then they see a shadow MEGALODON

  • Marc Medic HT
    Marc Medic HT


  • Dania Shalabi
    Dania Shalabi

    You German

  • annkristin Kartveit
    annkristin Kartveit


  • Kaleb Dominick Ko
    Kaleb Dominick Ko


  • ManiKanta

    Is he on drugs or his voice is just like highhhhh 😂😂🤣🤣 ?

  • Bengal taco man josh
    Bengal taco man josh

    :sharks looking for something to eat :put a drop of blood :sharks ooo I know we can eat

  • In My Opinion
    In My Opinion

    0:28 Something new to improve my fear of sharks!

    • Walta

      This video literally proved that its another myth

  • annieannie

    I still don't like sharks and I'm not ever going to a beach

  • Derek Stark
    Derek Stark



    Uh where did they get a whole bucket of blood 0_0

  • Mark Stratu
    Mark Stratu


  • Stxrloops

    So we not gonna talk about how they put urine in the water-

  • Jazmine Blackshire
    Jazmine Blackshire

    Are you crazy ok

  • Controlzy

    1:35 wait whats the white one?

  • Keven Gamer Gabriel Borges
    Keven Gamer Gabriel Borges

    is part of the shark smell the blood is of the movie

  • Andre Bennett
    Andre Bennett

    Hi that is crazy

  • Spailon

    The sounds the light makes at 4:37 kind of sounds like the music at 2:26

    • Currently speaking BMW Music
      Currently speaking BMW Music

      Lol true

  • قناة عيش الحياة
    قناة عيش الحياة

    Why you don‘t spend the blood on the Hospital they need this blood.

    • Random Stuff
      Random Stuff

      They said it was cow blood, I don’t think it’s very healthy for a human to be injected with cow blood

  • YTP Central
    YTP Central

    I wouldn’t

  • Murder _jld
    Murder _jld

    from where did they get blood??

  • Kimberly Mefford
    Kimberly Mefford

    Sharks are cute than you think☺ now I wanna swim with some sharks like that

    • Random Stuff
      Random Stuff

      Great white sharks are more aggressive, so you shouldn’t swim with them. Most of the others are chill though

  • Quinn Larkin
    Quinn Larkin

    i love sharks keep doing shark vids

  • J H Barrett
    J H Barrett

    Sharks can tell human blood from their preys blood, luckily they don't like human blood as much

  • Go Ahead Make My Day
    Go Ahead Make My Day

    Typical white boy stunts. One, this is what shows little kids that have not reached puberty, don't have a girlfriend, and are board playing w/ their Xbox and sec, instead of his finger why doesn't he do it on his d.

  • Ugly Rat
    Ugly Rat


  • Daph Smith
    Daph Smith

    So what’s the final generalisation about sharks behaviour in this experiment??

  • N3O Time
    N3O Time

    To me your one of my role models the other ones are Jaiden animations and CG5

  • Blacky

    idk why but i would have no problem seeing blood as long as its not the one thats being pumped out like the donation type

  • Julie Lee
    Julie Lee


  • Julie Lee
    Julie Lee

    Baby shark doo doo dodo 0:6

  • Yusuf Humaam
    Yusuf Humaam

    Question, where did you get all the bloods?

  • ★𝑆𝑜𝑢𝑙 𝐼𝑣𝑦★
    ★𝑆𝑜𝑢𝑙 𝐼𝑣𝑦★


  • Yhuan Padilla
    Yhuan Padilla

    Wait i saw that that's in finding nemo that shark just melon to blood what the heck!

  • ShadowValleys

    How to prank sharks...


    0:29 when you’re smelling orange chicken from panda

  • Leyiowin

    Where did you get all that blood😳

  • David Yu
    David Yu

    ah yes more mark rober messing with sentient life for content

    • Thelectricleaf

      It’s more of a science experiment, not just messing with sharks for content

  • Billie Joven
    Billie Joven


  • No man’s world🌻🌼
    No man’s world🌻🌼


  • Deemique Pearson
    Deemique Pearson

    You should've threw up the C's and Cuh rip

  • Jon T
    Jon T

    It’s a Boat we can’t afford a car

  • Joshua d
    Joshua d

    White people🤦‍♂️ Enough said

  • Marius Malaveckas
    Marius Malaveckas

    Am i the only one who thinks the sharks are friendly

  • Merin Jo Tomy
    Merin Jo Tomy

    They just put urine in the ocean

  • M. Zain Mustafa
    M. Zain Mustafa

    Not real

    • Bees Knees
      Bees Knees

      What How

  • Ninja Crosley
    Ninja Crosley

    That’s so scary

  • Paul Shipley
    Paul Shipley

    I love your videos

  • Joshua Olin
    Joshua Olin

    Maybe a large number of blood boards could be used to get sharks familiar to surf boards. So they don't think surfers are seals.

  • Sea Thunder
    Sea Thunder


  • Эльдияр Шаршенов
    Эльдияр Шаршенов


  • Laura W
    Laura W

    Panic they smell fear

    • Walta

      Thats literally impossible though

    • Laura W
      Laura W


  • Sebastian Pawlik
    Sebastian Pawlik

    Wait is the button press sound not from mc

  • Danielle Buckler
    Danielle Buckler

    Where did you get the blood?

  • Melvis Dalicce Salas Hugle
    Melvis Dalicce Salas Hugle

    No no blood que se me and yo. Son! !!!!!

  • Tony Meza
    Tony Meza


  • The Olivia Reign Show
    The Olivia Reign Show


  • Jacob Burns
    Jacob Burns

    Where did he get the blood

  • OneStepZen

    Watching from FL, check out my cool shark feeding frenzy meditation drone videos ​@​

  • proper

    I'm already tryed

  • Lebron Wilson
    Lebron Wilson

    How did u guys get the sharks to the big boat

    • Bees Knees
      Bees Knees

      They didn’t, the sharks there are probably used to the boats and think they’re gonna feed them lol

  • Nathan McMartin
    Nathan McMartin

    Z zzzzzzzzzz

  • Marco Asturias
    Marco Asturias

    Ah yes, sharks, the puppies of the sea!

  • Esperanzita Bonita
    Esperanzita Bonita

    Yeah sharks or whatever, but don’t be a coward, do real monsters- mosquitos.

  • Jennifer Thales
    Jennifer Thales


  • Francis Pepin
    Francis Pepin

    SHARKS ARE AMAZING WE NEED TO SAVE THEM!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  • Ailynn Isabelle Yap
    Ailynn Isabelle Yap

    Epic bro its intresting

  • Nidaa B
    Nidaa B

    Jagged Jgfty Nnhh

  • ravindranath hospital
    ravindranath hospital

    Yeah. Whales and sharks are much more kind and gentle than anybody would ever expect them to me. A whale also saved a scientists life.

  • Firenzar Frenzy
    Firenzar Frenzy

    The only part nagging me is that it would have been more reliable to use human blood instead of cow blood in the 1st experiment. The aim is to keep as many things constant or controlled

    • Game Talk
      Game Talk

      There wouldn’t be a difference in scent

  • XxJoexX

    press F to respect him cuz he wastes his own blood cuz of this video.

    • XxJoexX

      @CosserZ no f 4 u xd!

    • CosserZ


  • DraeLive

    Why did you put urine on middle of the oceon

  • Daniel Cox
    Daniel Cox

    This guy has been around sharks for a very long time because I don't believe for a split second that he'd have the guts to do this otherwise. Still impressive though. He knows this shark 🦈🤣

    • Rogue

      I'd do it lol. They're pretty chill