Testing if Sharks Can Smell a Drop of Blood

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Mark Rober

Vit më parë

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.
#SharkWeek begins July 28 only on Discovery
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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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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.

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

Millenna Pereira
Millenna Pereira 2 orë më parë
se postou ta vivo
Raven Aussie
Raven Aussie 5 orë më parë
Okay, ALnets, I'll watch it.
KH3N_ Playz01
KH3N_ Playz01 5 orë më parë
Omgg there so nice :0
Jasson Hamblin
Jasson Hamblin 6 orë më parë
The moment when you se you own blod
DARK SLAYER 6 orë më parë
i have A phobia on pointy things mostly the injection/sucking blood thing soooooo if im at the experiment i probably wont volunteer at the human blood experiment
El Pocho
El Pocho 6 orë më parë
Actual quality content with effort put in, dope ✔️
Ara Kay
Ara Kay 12 orë më parë
Question: what does the shark skin feel like? Rubbery, sandy, slimy, leathery, etc.?
yudy vanessa jaramillo berrio
yudy vanessa jaramillo berrio 14 orë më parë
omg so i have hematophobia and i made it through the whole video, was pretty interesting.
Gwennie Morris
Gwennie Morris 15 orë më parë
love this video!
michael D
michael D 18 orë më parë
surely all blood doesn't smell the same. Surely sharks are more attracted to the blood of a species they prefer to eat than that of a species they prefer not to eat. Plus they have that whole 6th sense thing with their electrosensory organs, making it pretty likely that they can tell a surfboard from a fish. lol
Guenther Steiner
Guenther Steiner 18 orë më parë
Girl: Isn't it weird girls live longer than boys? Girl 2: Yes, weird Boys:
bestie 19 orë më parë
The shark dosent even look at the blood and instead goes strait for his neck
Topher D
Topher D 19 orë më parë
I understand the experiment but I say we don’t need an experiment when we have the USS Indianapolis incident to tell us exactly what can happen with sharks. A majority of the survivors were attacked, eaten, or drowned. The sharks even played mind games with the soldiers. I take those soldiers word for it.
Nigel 21 orë më parë
Has Anybody Seen my friend Gavin?
Ashley Shmikler
Ashley Shmikler 22 orë më parë
What if u put mannikins on them so the sharks think real people r there
Altan Zengin
Altan Zengin 23 orë më parë
Lexi Organ
Lexi Organ 23 orë më parë
Lets take a min to appreciate how brave he is to do this Xxx😘😘
Rezena 23 orë më parë
What kind of sharks were those? I can’t believe he was swimming with them so casually and even touched one. Am I missing something here?! Lol 😆
Aero Rocketdog
Aero Rocketdog Ditë më parë
An America Online shirt in 2019?
Red X
Red X Ditë më parë
they can smell blood
Matt Syljuberget
Matt Syljuberget Ditë më parë
As a scientist, I would like to say how much I appreciate the effort you took making this video. Awesome!
Heitor Rainho
Heitor Rainho Ditë më parë
I think those are some Sand Sharks, they're pretty inofensive, i've been wondering if it was some white sharks , tiger sharks or hammerhead sharks that could be different?
Havva Dolaman
Havva Dolaman Ditë më parë
Türk olan ben miyim sayımızı gösterelim 👇
Don-E Ditë më parë
well i got alot out of this video my biggest fear is the ocean 🙃 thx for knocking the fear down a notch 😅 nothing but love mark
sanaya khatrii
sanaya khatrii 2 ditë më parë
Hatts of cameraman
Harseerat Kaur
Harseerat Kaur 2 ditë më parë
Girls- Why we live longer Boys -
Nashley HM
Nashley HM 2 ditë më parë
AIM R1cks0n
AIM R1cks0n 2 ditë më parë
get motion sickness?
jedd reinig
jedd reinig 2 ditë më parë
s p
s p 2 ditë më parë
Sugeng Hariyanto
Sugeng Hariyanto 2 ditë më parë
Kate mos fan kis low the skistux
tahseen banu
tahseen banu 2 ditë më parë
Ohk.....!!!! so u are out there to pollute the clear water!!
TAKESHI'S KITCHEN 2 ditë më parë
Woah! Nice content! I also have that question on my mind. Thank you for the answers❣️
Gwapa Koh
Gwapa Koh 2 ditë më parë
Shark cant smell blood but they can see it
The Real Miya Jay
The Real Miya Jay 2 ditë më parë
Deserves my like 👍🏾
Anna Xx
Anna Xx 2 ditë më parë
Charli shall try this too since she’s there
Super Goku
Super Goku 2 ditë më parë
The Money is going to Mark robber and the people in water risk her life for lil bit Money...
Connor DeMorett
Connor DeMorett 2 ditë më parë
What is the risk of shark attack equivalent to? I think I'd rather swim with sharks than walk downtown streets at night lol
Erick Peche
Erick Peche 2 ditë më parë
We’re did you get the blood from
Nick vD
Nick vD 2 ditë më parë
Why do a experiment for something that’s common known?
Tsuken 3 ditë më parë
Dacia Dior
Dacia Dior 3 ditë më parë
Blood or not they will eat u
Ryan's TV
Ryan's TV 3 ditë më parë
nice experimentation
Kivy 3 ditë më parë
Интересный факт: ты не можешь это прочитать потомучто ты не русский
Thesecond 256
Thesecond 256 3 ditë më parë
why does he sound like Mr Beast
Drake Kun
Drake Kun 3 ditë më parë
This is why man die first
BladeCross 3 ditë më parë
I always afraid seeing shark but when I see them being tested, at least it makes me less panicky when seeing one. As long I dont act like a seal....
ahmad alwan
ahmad alwan 3 ditë më parë
matias aquino
matias aquino 3 ditë më parë
Ramses Alonso Paz
Ramses Alonso Paz 3 ditë më parë
This is the way!
This is the way! 3 ditë më parë
like i was gonna bye them but they're worth over 200 so no thanks.
Trilla 3 ditë më parë
Nah let’s be real you got those nice sharks ghetto sharks would kill you
SpeedyTheGecko 3 ditë më parë
Fun fact: over 100 people die from getting hit on the head with a coconut every year, but only 6 people on average die from a shark attack. Technically, this means coconuts are deadlier than sharks
Justin Holliday
Justin Holliday 3 ditë më parë
Great idea
Aline Almeida
Aline Almeida 3 ditë më parë
Me I am Brazil Thank you very much
PN Houle
PN Houle 3 ditë më parë
While on a boat I dropped a piece of doughnut in water near the coast of New Jersey. Chris Christie came swimming from a mile away.
Gunslinga 3 ditë më parë
I mean there smarter than you think . I’m sure it’s a different story when your actually out there by yourself with no one around , bleeding .
Mochi Dude
Mochi Dude 3 ditë më parë
Sharks refused to visit the boards the second time because they knew there was no humans there for them to chow on since they were tricked the previous time. I think ya'll should've moved to a different spot with fresh clueless sharks
Mochi Dude
Mochi Dude 3 ditë më parë
The sharks are more attracted to the boat rather then the liquids placed out into the water.
Moiria Beck
Moiria Beck 3 ditë më parë
The tenuous astronomy operationally pine because parentheses consistently alert over a long chime. tasteless, puny trowel
べにあん 3 ditë më parë
サムネはおバカ外国人ALnetsrって感じだけど、しっかり実験やってる笑 鼻擦ると混乱しちゃうんだよね
Idk Theman
Idk Theman 4 ditë më parë
Props to Mark and the crew for donating fresh blood
Sarah Spice
Sarah Spice 4 ditë më parë
Q the house is the same way as the car 🚗 is in there and I
Putera Maximoff Yang Tertukar
Putera Maximoff Yang Tertukar 4 ditë më parë
Next video, try with White shark or Tiger Shark dude
Sam_g19 - FPS Player
Sam_g19 - FPS Player 4 ditë më parë
Gta 6 Nice graphics 👍
James Smith
James Smith 4 ditë më parë
Go Mathias Blood???? I am offended. You make every Hindutva people offended. Jai BJP ......
SUMAN GOUDA GAMING 4 ditë më parë
Celebs Vlog
Celebs Vlog 4 ditë më parë
Women: why do men die earlier than us? Men:
U U 4 ditë më parë
That's insane.
VYCE BLOOM 4 ditë më parë
... those headphones look fire 😂
Malik Yussuf
Malik Yussuf 4 ditë më parë
yessenia the phlebotomist
Bryson Funny channel
Bryson Funny channel 4 ditë më parë
You can get really hurt doing that
Colin N
Colin N 4 ditë më parë
Mark: On top of all that, I didn't die Us viewers: Congrats Mark
Colin N
Colin N 4 ditë më parë
11:07 Subtitles said "Godda**" lol, he said "Got in"
joseph martin llamado
joseph martin llamado 4 ditë më parë
Why a Sharks not eat people 😕?
2004 Ford Ranger XLT • 69 years ago
2004 Ford Ranger XLT • 69 years ago 4 ditë më parë
ALnetsrs teach local shark population to track human blood
Rohan Mathews
Rohan Mathews 4 ditë më parë
The hurt active reciprocally carve because hemp molecularly educate after a whimsical carol. yummy, jumpy servant
Mexican Maria
Mexican Maria 4 ditë më parë
Try white sharks
zeus ff
zeus ff 4 ditë më parë
Tô entendo tudo
FARRID HIDAYAT 4 ditë më parë
Indonesia like🇮🇩🇮🇩🇮🇩
Amairani López
Amairani López 4 ditë më parë
lakai2305 4 ditë më parë
They are waiting like any civil person in a queue :D 6:54
Dayana Bernal
Dayana Bernal 4 ditë më parë
Apoco no te comió👍✋✌✊👌👐👏😰
MALVADO FF 4 ditë më parë
Porque que o ALnets me recomenda vídeo em inglês
MALVADO FF 4 ditë më parë
Não entendi porra nenhuma
João Vidal
João Vidal 4 ditë më parë
America OnLine TShirt... nice
Jewel Oraka
Jewel Oraka 4 ditë më parë
Well we're you get the blood from 🤨🤨🤨
유교남 4 ditë më parë
한국인 어디 없나 하면서 내려보시는분들 손?
Priscila Aragão
Priscila Aragão 4 ditë më parë
Alguém é português
Andri Story
Andri Story 4 ditë më parë
ThurFÉ sx
ThurFÉ sx 4 ditë më parë
essas porra não mata o cara? akakakkaakkakkakakaakaak
RJ Gaming
RJ Gaming 4 ditë më parë
You live cause they were not hungry
Its.me.bitches 4 ditë më parë
That some white ppl activity
MUHAMAD FATIR 5 ditë më parë
eee ga bisa bahasa engress
Jnr 5 ditë më parë
Dude why is Lucas swimming out in shark infested waters 🙆🏾‍♂️
Mishka Misheel
Mishka Misheel 5 ditë më parë
Are you guys crazy😆😈
It's your girl TKM
It's your girl TKM 5 ditë më parë
Ehh u playing with fire
Anjay Gaming
Anjay Gaming 5 ditë më parë
Aku gak bisa bahasa enggres
BETA Gaming
BETA Gaming 5 ditë më parë
They all waiting for you by the boat bro.
lightless 5 ditë më parë
Whens the last time ive seen water like that? I dont really remember.................................................
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