Shark Attack Test- Human Blood vs. Fish Blood

Mark Rober
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97% 90 072 1 861

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!!! www.kiwico.com/markrober
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.
FACEBOOK: facebook.com/sharkweek
TWITTER: twitter.com/sharkweek
INSTAGRAM: instagram.com/sharkweek/
DE-vid: de-vid.com/u-discoverychannel
TIKTOK: www.tiktok.com/@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- whipr.com/
***Music info coming soon***
Here is a talented up and coming artist named Kenyi. Check him out! smarturl.it/1c5766

Wissenschaft & Technik



9 Aug 2020



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Mark Rober
Mark Rober Vor Tag
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.
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 Vor Tag
No worries. Love the video :3
Braden Battershell
Try the same thing but with crocodiles
Potter heads unite
No sweat Rober I promised my friends my first video may 23 look where I am now
Minecraft Stuff
Does Kiwi Co. have shipping to Asia Or more like Thailand?
Jonathan Coward
Jonathan Coward Vor 3 Stunden
Didnt they say one was a matin biologist and they didnt know or decide to just cut the tail gills and bleed the fish.
Arug Vor 3 Stunden
Bruh I have a fish this hurts to see
Bruno Ramírez
Bruno Ramírez Vor 3 Stunden
I just wonder how they got 5 gallons of human blood
chps Vor 3 Stunden
Sidney Berliner
Sidney Berliner Vor 3 Stunden
luke the legend
Danimal's Lego Creations
Nice job on #1 on trending!!!
charlie rogers
charlie rogers Vor 3 Stunden
No animals were harmed in the making of this vidio
Naomi Upton
Naomi Upton Vor 3 Stunden
Mark:Shark Attack Test- Human Blood vs Fish Blood. Morgz:WATCHING MARK NEARLY GET KILLED (I FAINT) (MASSIVE FAIL)
Jack Muscat-Byrne
Jack Muscat-Byrne Vor 3 Stunden
Am I the only one wondering how they got 5 gallons of human blood?
Jack Muscat-Byrne
Jack Muscat-Byrne Vor 3 Stunden
Cheer Queen
Cheer Queen Vor 3 Stunden
Hope they threw that blender out
Lizz Fizz
Lizz Fizz Vor 3 Stunden
Matt Golka
Matt Golka Vor 3 Stunden
What about the real heros, the camera crew?
Derp gamer
Derp gamer Vor 3 Stunden
One of the 26k comments on this video is me.
18ENTUMECIDO Vor 3 Stunden
5:30 Karen is typing... Hey, that is animal cruelty
Baby Yoda
Baby Yoda Vor 3 Stunden
What is the song at 4:05? I'm just curious honestly
Oliver Vor 3 Stunden
Only people who learned more from marks channel than from school can like this
Mepose Vor 3 Stunden
Time right now is 4:20
Emma Vor 3 Stunden
Some people need this blood
Tristan Gurnea
Tristan Gurnea Vor 3 Stunden
The fact that you came up positive goes to show how corrupt the results are
poisonedBannana Vor 3 Stunden
POV you didn’t search this and this isn’t the top comment
TheLegendaryBroccoli Vor 3 Stunden
Slumpy Boy
Slumpy Boy Vor 3 Stunden
marc bennink
marc bennink Vor 3 Stunden
4:12-5:28 to all the vegans out there. I feel you
David Cavill
David Cavill Vor 3 Stunden
Amanda Gonzalez
Amanda Gonzalez Vor 3 Stunden
Those poor fish
Victor Van Santen
Victor Van Santen Vor 3 Stunden
Lol i quit when he used cow blood to simulate human blood. Does not answer your question
Derp gamer
Derp gamer Vor 3 Stunden
One of the 413k likes on this video is me.
The Handy Guy
The Handy Guy Vor 3 Stunden
Keep up the cool content mark
Death Hunter
Death Hunter Vor 3 Stunden
If you wanted to get almost all the blood from a fish cut it's tail off
EzPz Quentin - Brawl
EzPz Quentin - Brawl Vor 3 Stunden
I want to create the most evil puzzle a 10000 piece puzzle with no edge so pieces stick out and the colour is all the cardboard colour so it’s upside down and right side up and there is 500 extra pieces so you will mess up pieces try and put a right side up piece down side up without knowing the colour of each side and some pieces don’t fit because they don’t connect
TheTiarasDeadly UwU
TheTiarasDeadly UwU Vor 3 Stunden
noob bmgo
noob bmgo Vor 3 Stunden
Number one on trending:o
Jaime Beazer
Jaime Beazer Vor 3 Stunden
Nasty 🤢 you blending the fish 🐠
Derp gamer
Derp gamer Vor 3 Stunden
You know you're early when the video is 1 day old.
Jorge Mendez
Jorge Mendez Vor 3 Stunden
dude perfect guys are so cringy
Windtor AE
Windtor AE Vor 3 Stunden
I would say that the song you put at the start is boring now
TheTiarasDeadly UwU
TheTiarasDeadly UwU Vor 3 Stunden
How did you get the human blood...
Alan Tapia
Alan Tapia Vor 3 Stunden
9:54 that’s all I’m saying
Aria Does
Aria Does Vor 3 Stunden
2,25,458,12 views Vor 3 Stunden
4:28 that poor fish 😩🙄😓😖
Orene Vor 3 Stunden
I love how you can just boop sharks away from you and they don’t care XD
Sandra McLeish
Sandra McLeish Vor 3 Stunden
U should come to Jamaica if u want to see coral reefs on glass bottom boats
Brandon Mills
Brandon Mills Vor 3 Stunden
Blending a fish? Is that ethical?
Luv_Royale Vor 3 Stunden
Getting out of that cage must have been SOOOO scary!!
Royal Robichaud
Royal Robichaud Vor 3 Stunden
Hey Mark do you believe in god. Please respond.
Jl Kep
Jl Kep Vor 3 Stunden
Omg as a scientist the control is driving me insane. Fish of blood was not only blood but composed of proteins, bone, cartilage etc. So You can not interpret the results accurately. Faulty experimental design
the guider
the guider Vor 3 Stunden
you could sell this to people and companies to keep beaches safe, now thats Profit
Grub o
Grub o Vor 3 Stunden
This would be demonetized if he weren’t a scientist
Marciano Markese
Marciano Markese Vor 3 Stunden
Oehh scary corona shut up man
Kerry Canning
Kerry Canning Vor 3 Stunden
Does anyone feel sorry for those 🐟😱😭😓😵😢👎🏼
-I.eat. Humans-
-I.eat. Humans- Vor 3 Stunden
That vegan teacher would flip out if she saw this
ScottThe Newb
ScottThe Newb Vor 3 Stunden
*”And another with 5 gallons of human blood.”* *Hold up.*
n0rrraa Vor 3 Stunden
so you blended a fish you just made a drink out of fish blood, fish brain, fish heart, fish uhwhjudjhwsudjs
Luv_Royale Vor 3 Stunden
Your gonna have a lot of explaining to do to your wife-
Centro Vor 3 Stunden
so how many people did you have to kill to get that much blood?
kirsten chong
kirsten chong Vor 3 Stunden
Finally mark rober posts and it’s 1 on trending wow :o
top frog
top frog Vor 3 Stunden
😩😩😩 I don't want to to that I feel bad for you
Shin Bi
Shin Bi Vor 3 Stunden
You were asymptomatic but made yourself look very sick. You're contributing to the fear of the coronavirus.
Brooke007 Vor 3 Stunden
Anyone else get a oprah commercial after he said the oprah thing ?? 😭
ima lemon
ima lemon Vor 3 Stunden
Im so happy one of my favorite youtubers beat corona then again, im kinda sad since he got it
Buddy Buddy
Buddy Buddy Vor 3 Stunden
This has 9.1 million views in a day
Brooke007 Vor 3 Stunden
Oh god the blending of the fish almost made me PUKE jesusss a whole BUCKET of blood?!?! A NIGHTMARE
Patrick Cui
Patrick Cui Vor 3 Stunden
Imagine just seeing 2 full grown men grinding fish in a blender
David Bedsaul
David Bedsaul Vor 3 Stunden
he said “ i won’t let the coronavirus kill me but sharks? maybe...”
Krish Agrawal
Krish Agrawal Vor 3 Stunden
Suppose the delivery guy who delivers sauce to the pizza restaurants accidently delivers 5:42
n0rrraa Vor 3 Stunden
Sadik Selia
Sadik Selia Vor 3 Stunden
If I strap a wind turbine(generator) on a vehicle and drive it on road with atmosphere but no wind Am I generating any electricity or am I using the car's energy to drive the turbines.
Turtle Time!
Turtle Time! Vor 3 Stunden
OMG IM SO GLAD UR OK AND SAFELY RECOVERED FROM COVID U ARE MY FAVORITE YTBER AND I WOULD BE SO SAD IF U NOT CAPABLE OF MAKING VIDS ANYMORE. Also, why do I feel like I would totally just be messing around on the plane just like you did 🧐🧐🧐
Bleachy Boi
Bleachy Boi Vor 3 Stunden
congrats on #1 on trending
Jordan Williams
Jordan Williams Vor 3 Stunden
Jack Moxley
Jack Moxley Vor 3 Stunden
“Get out as silent as possible” 14:50
bishonen_edits Vor 3 Stunden
And this whole thing without a mask 🎪
Arham Zaheer
Arham Zaheer Vor 3 Stunden
OzeanErde 353006
OzeanErde 353006 Vor 3 Stunden
You soeak to farst (soory bin deutsche kann nicht so gut englisch)
Popsvlog Vor 3 Stunden
too funny harmless nurse sharks
Josh Stovall
Josh Stovall Vor 3 Stunden
You’re a baller
puddingsauce Vor 3 Stunden
Living like Larry.
Bo Tang
Bo Tang Vor 3 Stunden
Imagine mark came home to his fam with the 20 fish and said: “ I’ve got dinner “ XD
Buzz The lightyear
Buzz The lightyear Vor 3 Stunden
My man got corona beat it and flew out of state in a private jet mad respect
hannah 571
hannah 571 Vor 3 Stunden
People: So what’d you do this weekend? Mark: Just blended some fish
Jeff Bratteson
Jeff Bratteson Vor 3 Stunden
Okay, what resort is featured in this video? Looks awesome. Glad you made it out alive. Phew.
HeroLegoII Vor 3 Stunden
What do you use to edit the video and where do you get the music from?
Simon Family
Simon Family Vor 3 Stunden
You should actually do a video dude perfect!!!
M Jack
M Jack Vor 3 Stunden
That’s a shark? They look like the fishes in my uncles aquarium.
Conclusionz Vor 3 Stunden
Wait why is Mark jacked?
Kai C
Kai C Vor 3 Stunden
where is your mask
gavin helton
gavin helton Vor 3 Stunden
@midzyonce _12 There outside in the bahamas and none of them have the virus
midzyonce _12
midzyonce _12 Vor 3 Stunden
@gavin helton why
gavin helton
gavin helton Vor 3 Stunden
Shut up
Abdelaziz- A
Abdelaziz- A Vor 3 Stunden
Cow Blood vs Fish Smoothie ( not fish blood), so maybe the sharks were reacting to the meat not the blood.
TC mason
TC mason Vor 3 Stunden
#1 trending
rimsius24 Vor 3 Stunden
It's so cool 😱
Kawaii_ Floofer
Kawaii_ Floofer Vor 3 Stunden
The fish blood part and gills was disgusting to watch. This is my opinion, sorry. Pls no hate
Burrito Bowl01
Burrito Bowl01 Vor 3 Stunden
Vegans love this
Barat Ali Mohamadi
Barat Ali Mohamadi Vor 3 Stunden
Crank Ex
Crank Ex Vor 3 Stunden
Ok but why is he riped
Unknown ?¿
Unknown ?¿ Vor 3 Stunden
I just witnessed a murder
Rochelle Thomas
Rochelle Thomas Vor 3 Stunden
Never mind Mark...I found it...
A G Vor 3 Stunden
Awwww, I was hoping he got eaten by the sharks.
Bapple Vor 3 Stunden
Dr. Kev
Dr. Kev Vor 3 Stunden
To be fair, that wasn't just fish blood it was blended whole fish, with that said, it's obvious that sharks will be attracted to raw smell of blended flesh... I think it would've been the same if you blend a chicken.
Daniel Hong
Daniel Hong Vor 3 Stunden
Blending that fish absolutely disturbed me.
Peace Peace
Peace Peace Vor 3 Stunden
they give everybody positive mark
JC Martinez
JC Martinez Vor 3 Stunden
10k dislikes from the fish blending 😂
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