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
    INSTAGRAM: https://www.instagram.com/sharkweek/
    YOUTUBE: https://www.youtube.com/discoverychannel

    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/
    01:14 - Kalimba Jam - Blue Wednesday https://soundcloud.com/bluewednesday/
    2:30 - Dizzy - Political Statement and JMoney - https://soundcloud.com/dylanruff/political-statement-jmoney-dizzy
    3:59 - Cereal Killa - Blue Wednesday https://soundcloud.com/bluewednesday/
    5:17 - Marimba Idea - Blue Wednesday https://soundcloud.com/bluewednesday/
    6:12 - Berlin - Andrew Applepie - http://andrewapplepie.com/
    6:40 - Dansez - Fasion https://soundcloud.com/michalgallo/dansez-fasion-beats-music
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    12:34 - New Shoes - Blue Wednesday https://soundcloud.com/bluewednesday/
    13:02 - Q - Blue Wednesday https://soundcloud.com/bluewednesday/
    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 • 48 939

  • brion burkett
    brion burkett  39 minutes back

    Let’s take a minute to appreciate how much money this guy made on all of our views.

    • Matthew Kiska
      Matthew Kiska  50 minutes back

      Whenever i hear THAT WORD i start having a mental breakdown

      • ThegamerDiego
        ThegamerDiego  3 hours back


        • keemo 2005
          keemo 2005  6 hours back

          I thought when he put the blood to he sharks the sharks will be like....yummy

          Man:ready for that yummy blood!

          Shark:oOOoHHhh YUmMmYyYy


          • Furkan Varol
            Furkan Varol  9 hours back


            • Shop Soy
              Shop Soy  9 hours back

              Me: *see the title*
              Great! Because Im bored and my life doesnt matter

              • Bubble head Queen
                Bubble head Queen  10 hours back

                Isn’t that pollution 🤔 just asking no hate I mean the urine part

                • Bubble head Queen
                  Bubble head Queen  10 hours back

                  Who else found this in Thei

                  • miguel bautista
                    miguel bautista  11 hours back

                    seems like the sharks preferred the fishes that went to the first blood and the fish oil

                    • Ameer Muaavia
                      Ameer Muaavia  13 hours back

                      is this swimming pool

                      • Jannisen ;D
                        Jannisen ;D  14 hours back

                        I just wanted to say that you could hav saved life’s with that blood you just poured right in the trash?!?!

                        • Mary Jane MITTMAN
                          Mary Jane MITTMAN  16 hours back

                          Hey, everyone, I am trying to start up a channel and i need support! I would love to gain subscribers and for you to watch my vids!!

                          • Troodon Gaming
                            Troodon Gaming  17 hours back

                            Sharks can probably tell the difference between human and fish blood

                            • Brave Banana’s
                              Brave Banana’s  17 hours back

                              Where did u get that bucket of blood

                              • Demon Core
                                Demon Core  18 hours back

                                Sharks are amazingly chill

                                • •Gacha Cherri•
                                  •Gacha Cherri•  22 hours back

                                  I'm not as scared of sharks anymore!

                                  • Andrea Puspa Melinda
                                    Andrea Puspa Melinda  23 hours back

                                    I'm interest to know.. Wether different type of blood will have a different effect for sharks. Like.. Maybe sharks prefer B type blood than O type blood since maybe it smell sweeter or something?

                                    • XV_ X
                                      XV_ X  23 hours back

                                      I really like the clear water

                                      • Gill Man
                                        Gill Man  24 hours back

                                        Is Luke Australian?

                                        • Loxify
                                          Loxify  1 days back

                                          Y’know it could be that the sharks were attracted to the small fish near the cows blood

                                          • Ewen Cameron
                                            Ewen Cameron  1 days back

                                            Hey are you the guy from #teamtrees?

                                            • Jonisawesome
                                              Jonisawesome  1 days back

                                              no offense but there probably were attracted to the boat

                                              • Tomato Dinosaur
                                                Tomato Dinosaur  1 days back

                                                They could be docile sharks or just not hungry

                                                • Kristina Liapis
                                                  Kristina Liapis  1 days back

                                                  He spelled noob wrong!

                                                  • Matthew's Masterpiece
                                                    Matthew's Masterpiece  1 days back

                                                    No one:
                                                    Absulutley no one:
                                                    Them: I'm down to get a blood test on a boat in the middle of water to see if sharks like blood....
                                                    Me: See's a blood test and almost fainted

                                                    • Sarah D'Annunzio
                                                      Sarah D'Annunzio  1 days back

                                                      Cool video

                                                      • vainejsj bxjhjdk
                                                        vainejsj bxjhjdk  1 days back


                                                        • Cessa Licious
                                                          Cessa Licious  1 days back

                                                          Sharks enjoying their lives in the ocean .

                                                          Mark Rober : *CaN sHaRkS sMeLL a dRoP oF bLoOd?*

                                                          • PRO Plays
                                                            PRO Plays  1 days back

                                                            Next test: let’s see if I throw a stick at a bird it will fly away!

                                                            • Chloe Walker
                                                              Chloe Walker  1 days back

                                                              They probably do smell it but they just aren't interested or maybe they learned from the first experiment that there is really nothing.

                                                              • Chalet Louladou
                                                                Chalet Louladou  1 days back

                                                                Obviously they used a shark feeding boat and dive spot with accustomed sharks just waiting for the feed at the back of the boat as they always do... making the experiment rather flawed.

                                                                • hEy MaDaFaKa
                                                                  hEy MaDaFaKa  2 days back

                                                                  It's easier to test it with a girl with a period😂

                                                                  • Angelique
                                                                    Angelique  2 days back

                                                                    After watching one of your videos I'm now hooked. EXCELLENT videos!!!!!

                                                                    • Luxury J
                                                                      Luxury J  2 days back

                                                                      Maybe the blood wasn’t fresh enough

                                                                      • AdamLais
                                                                        AdamLais  2 days back

                                                                        Human:This is my blood

                                                                        Sharks:Your blood taste soo bad than cow blood

                                                                        • Tom Robinson
                                                                          Tom Robinson  2 days back

                                                                          3:35 You can tell Mark doesn’t know that’s huge 🤣🤣

                                                                          • Yxng Amzy
                                                                            Yxng Amzy  2 days back

                                                                            This guy kind of sounds like ducky the gamer

                                                                            • Domino Wright
                                                                              Domino Wright  2 days back

                                                                              Did the blood smell and how did you get the blood did you murdered someone 😲

                                                                              • •Nans L’huillier•

                                                                                *Test : Lets see if si die by jumping off this skyscraper*

                                                                                • i've lost faith in life

                                                                                  of course mark rober has a boring company flamethrower

                                                                                  • Braden Rickey
                                                                                    Braden Rickey  2 days back

                                                                                    why their own blood

                                                                                    • Thida Sour
                                                                                      Thida Sour  2 days back

                                                                                      When I watched movie: I was scared with sharks.
                                                                                      When I watch this video: omg sharks so cute .

                                                                                      • uruntelldat
                                                                                        uruntelldat  2 days back

                                                                                        I LOST MY TUTH

                                                                                        • Da Baby
                                                                                          Da Baby  2 days back

                                                                                          I- urine

                                                                                          • Christopher Earls
                                                                                            Christopher Earls  2 days back

                                                                                            No ways he’s not the cool uncle

                                                                                            • Thanos mp
                                                                                              Thanos mp  2 days back

                                                                                              Plot twist:
                                                                                              Sharks are paid actors

                                                                                            • Denise Pan
                                                                                              Denise Pan  2 days back

                                                                                              Ahhh love your experiments!

                                                                                              • Silver Beaver
                                                                                                Silver Beaver  2 days back

                                                                                                Anyone noticed that that’s the Minecraft button sound affect 4:35