Testing if Sharks Can Smell a Drop of Blood

  • Published: 28 July 2019
  • Scientific proof Pixar sits on a throne of lies. Thanks to Bose for their support and for the dopest headphones I've ever worn: https://bose.life/markrober

    Also, thanks to Discovery for putting my life in danger.
    #SharkWeek begins July 28 only on Discovery
    FACEBOOK: https://www.facebook.com/sharkweek
    TWITTER: https://twitter.com/sharkweek
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    Links for the build instructions: https://www.dropbox.com/s/iqn14ydzqafhws5/SharkBait_Manual_PartsList.pdf?dl=0

    Sean's Hodgin's channel who did most of the heavy lifting for making the boxes: https://www.youtube.com/channel/UCE-bw6PRKuDlH6fP1mP4nOw

    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 YouTube channel.
    YT: https://www.youtube.com/channel/UC5fn3MXGv41LY-BB8XRjyCQ
    email: sharkmanconnor@gmail.com
    Insta: @sharkmanconnor

    Follow my marine biologist friend Luke Tipple on Instagram- https://www.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


    00:11 - Arrow - Andrew Applepie http://andrewapplepie.com/
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    15:12 - Too Happy to be cool by Notebreak https://soundcloud.com/notebreak/dubstep-too-happy-to-be-cool

    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- https://teespring.com/stores/markrober

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  • Science and Technology Science and Technology

Comments • 47 288

  • Norina I
    Norina I  43 minutes back

    Is no one gonna talk about how they polluted the friggin water. Urine?! Wtf?! Thats just weird.the world is dying

    • renegade shadow
      renegade shadow  2 hours back

      I was just watching the area 51 raid an now wtf

      • Laney
        Laney  2 hours back

        Stop exploiting wild animals for views

        • Anthony Loheac
          Anthony Loheac  2 hours back

          Who's per was it

          • Az
            Az  4 hours back


            • Joseph Kaneaster
              Joseph Kaneaster  5 hours back

              But what if they were already full

              • Jaynie
                Jaynie  6 hours back

                Teaching sharks that surfboards have things that smell like food sounds like a horrible idea...

                • Erkki Donaldson
                  Erkki Donaldson  6 hours back

                  Your smart

                  • Glidedguy
                    Glidedguy  6 hours back

                    Mark: *Plays with shark*
                    Jelous Shark: >:( he's only playing with him Guys let's swarm him!

                    • SchPeti
                      SchPeti  6 hours back

                      So no one gonna talk about 11:55?

                      • High-Tech Poro
                        High-Tech Poro  6 hours back

                        7:11 was that.. a minecraft sound effect?

                        • Ammonia _
                          Ammonia _  6 hours back

                          So many tourists died in the Bahamas from carelessly diving in shark infested waters.

                          This guy: I'm gonna attract sharks!

                          • Abercrombie Shelmerdine

                            Yeah.... looks like those sharks have definitely learnt to follow boats because they often throw stuff overboard.

                            • xXwolfiexXx
                              xXwolfiexXx  9 hours back

                              Let’s not care about him smiling on his day of death

                              • Alex Siow
                                Alex Siow  9 hours back

                                So I think these are some bloopers from shark week

                                • wulphstein
                                  wulphstein  9 hours back

                                  Oh my God! I just LOVE SCIENCE!!!!!!!! *hearts popping*

                                  • Jas Rhian Sawit
                                    Jas Rhian Sawit  10 hours back

                                    The water is so clear so pretty!!!

                                    • ain’t tea but FACT
                                      ain’t tea but FACT  12 hours back

                                      I cant tell where the fish oil and urine is

                                      • Princess_Elinor Plays ROBLOX and more!

                                        6:54 when people follow you because you have as tasty snack

                                        • Ruffy The Reindeer Gold
                                          Ruffy The Reindeer Gold  13 hours back

                                          When u clicked the button, it sounded like an pressure plate from minecraft xD

                                          • Kyle Reyes
                                            Kyle Reyes  13 hours back

                                            So basically....Disney lied?

                                            • Glitter Lucky
                                              Glitter Lucky  15 hours back

                                              Is it real blood

                                              Omg it is

                                              • Carïnë R'sT
                                                Carïnë R'sT  15 hours back

                                                Some people just wanna die young

                                                • Kimberly Rose
                                                  Kimberly Rose  16 hours back

                                                  Honestly For me the scariest part would be cutting my finger

                                                  • cuddlyarcticwolf aj
                                                    cuddlyarcticwolf aj  16 hours back


                                                    Where did u get the bucket of
                                                    BLOOD from????

                                                    • Adriana Fischer
                                                      Adriana Fischer  17 hours back

                                                      I prepared to Push a Button 😂 lol

                                                      • Spongebob & Squidward 10\10

                                                        Next video: testing if dogs would chase me if I throw rocks at them

                                                      • lex the T-rex
                                                        lex the T-rex  19 hours back

                                                        Next video

                                                        Can kids smell a bag of chips a mile away

                                                        • Brittany Hereld
                                                          Brittany Hereld  20 hours back

                                                          GOD HOW DID YOU GET BLOOD!!!????

                                                          • Elias Aguilera
                                                            Elias Aguilera  20 hours back

                                                            Why would you put that stuff in the beautiful water

                                                            • the real boss baby
                                                              the real boss baby  21 hours back

                                                              this is boring video oof godddd
                                                              so dum

                                                              • حيدوري الشمري


                                                                • random
                                                                  random  22 hours back


                                                                  • selena ozen
                                                                    selena ozen  23 hours back

                                                                    How sharks are not attacking the guy in water?

                                                                    • Michael Iezzi
                                                                      Michael Iezzi  24 hours back

                                                                      I have a question, have you ever considered the fact that they didn't attack or take interest because they did not detect a threat? what would happen if you did the blood test while poking and proding them into thinking there is a present threat?

                                                                      • Jodie Gonzalez
                                                                        Jodie Gonzalez  1 days back

                                                                        This gave me anxiety

                                                                        • Texoma Tinker
                                                                          Texoma Tinker  1 days back

                                                                          The dive boat is a variable you didn't account for.

                                                                          • NamiiCho
                                                                            NamiiCho  1 days back

                                                                            The little fishies swimming by the sharks remind me of the little fishies that swim around kikyo 🤣😢

                                                                            • NamiiCho
                                                                              NamiiCho  1 days back

                                                                              I heard that sharks don’t actually like the taste of human blood and most shark attacks are from curiosity or defense but idk!

                                                                              • Daisy Wright
                                                                                Daisy Wright  21 hours back

                                                                                Thats right, normally, they attack surfers because they think the humans feet and hands are turtles on the board that they surf on. Sharks attack by accident, and they dont really like the taste of humans.

                                                                            • StiKz
                                                                              StiKz  1 days back

                                                                              Its like testing if a bird can fly...

                                                                              • The Clickster
                                                                                The Clickster  1 days back

                                                                                It looks like the sharks are more attracted to the boat then the boards😂

                                                                                • Angeline van Heerden
                                                                                  Angeline van Heerden  1 days back

                                                                                  This is super awesome! Thank you! People need to see this and understand sharks are not as bad as they are betrayed to be....

                                                                                  • Jokted Wetu
                                                                                    Jokted Wetu  1 days back

                                                                                    my class can smell my bubble gum a 100 miles away

                                                                                    • Infinite IKEA 2.0
                                                                                      Infinite IKEA 2.0  1 days back

                                                                                      So you wasted a Human blood

                                                                                      • Riley Weston
                                                                                        Riley Weston  1 days back

                                                                                        It want human is was fish

                                                                                        • Renzo Miranda
                                                                                          Renzo Miranda  1 days back

                                                                                          0 sharks for human blood its because they know where the humans are.

                                                                                          • Junior Vargas
                                                                                            Junior Vargas  1 days back

                                                                                            Pensavo che moriva

                                                                                            • B9poy
                                                                                              B9poy  1 days back

                                                                                              7:07 this is synced so perfectly lmao