Can Sharks Really Smell Blood from a Mile Away?

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  • Опубликовано: 26 ноя 2024

Комментарии • 70

  • @NawDawgTheRazor
    @NawDawgTheRazor 11 месяцев назад +20

    The way sharks swim is so elegant .

  • @0mn1vore
    @0mn1vore 11 месяцев назад +19

    Reminds me of a picture I saw recently, comparing the outline of a paddling surfer, a turtle, and a sea lion. All quite similar This is why most `shark attacks' are just one bite and then they leave. "Eww, that's not what I ordered." [quietly swims away]

    • @huldu
      @huldu 11 месяцев назад +3

      There is some truth to it mostly comes down to the shark not *used* to humans and let's be fair out in the ocean they rarely if ever come in contact with humans. It's the same with many predators once they get a taste for it things quickly change and you all of the sudden have a manhunter(common with polar bears and tigers).

    • @jordannoell4222
      @jordannoell4222 11 месяцев назад +8

      At least with great whites the theory that surfers and seals look alike seals has been challenged. Great whites have incredibly good eyesight (even by shark standards) and can distinguish between a person and a seal. That is why most bites on humans are exploratory instead of an attack that involves dragging prey under the water while thrashing. They give up after a bite because humans taste badly and aren't nutrient rich enough to be worth a full attack. Great whites are also extremely risk avoidant and will stop attacking if the prey fights back (seals can swarm juveniles) and they would much rather wait for their prey to bleed out instead of committing to another bite.

    • @junglechick13
      @junglechick13 10 месяцев назад +2

      Wearing a wetsuit makes us appear to be "seal-like" but then, we don’t taste good

    • @helenthorpe2862
      @helenthorpe2862 9 месяцев назад

      Attacks aren't always hunger driven either. Sometimes it's about territory, and humans are continually having greater and greater impacts on shark territory.
      Only natural that eventually a few of them get moments when they'd like to take a bite out of us.

  • @jamiethompson7276
    @jamiethompson7276 11 месяцев назад +21

    So cool to see ongoing research happening (also the little bonnetheads are so cute 🥰)

  • @OvertheRiverandThroughtheWoods
    @OvertheRiverandThroughtheWoods 11 месяцев назад +11

    Badass behavioral ecology. LOVE this!

  • @CA-lf7jt
    @CA-lf7jt 11 месяцев назад +15

    Was down there a few months ago. The water temps in the Keys were SO hot . Not warm , hot. I did see Manatee, thankfully, lots of lobster, but only one shark . I wondered how the fish were surviving in that water

    • @ColaKitty9595
      @ColaKitty9595 11 месяцев назад

      The ocean Temps in some areas were equal to a hot tub last summer.
      But climate change is just a liberal commie myth to charge more in taxes.

    • @stevebennett9839
      @stevebennett9839 11 месяцев назад +4

      Yeah this past summer there was a record set in the keys for the hottest water temp. I wana say it was like 100 degrees.

  • @ecurewitz
    @ecurewitz 11 месяцев назад +7

    Fish heads, fish heads. Rory poly fish heads 6:31

  • @ananths1122
    @ananths1122 11 месяцев назад +4

    good video because, it gives the answer quick enough and direct, one can't always expect a viewer to have enough time to watch all the way until the end of a long video

  • @timgchannel3328
    @timgchannel3328 11 месяцев назад +3

    Most shark attacks on humans happen in Florida waters. If I ever retire, it will not be to Florida.

  • @thelyingfish8465
    @thelyingfish8465 11 месяцев назад +6

    Ive had 2 sharks try to attack me unprovoked in the keys. Ive also had a very large hammerhead knock into my kayak several times near the 7 mile bridge. A shark will eat you if it wants to. Always be aware of the dangers while in the ocean. It is NOT safe to be in the water, but can be enjoyed if you pay attention to whats around you.

  • @OneHalfSaint
    @OneHalfSaint 10 месяцев назад

    Jasmin is such a lowkey sleeper hit of a host. Super appealing how she nudges Dr. Simonitis to open up without being too invasive--a wonderful interviewer.

  • @keithwagg4112
    @keithwagg4112 11 месяцев назад +2

    Wow never knew anything about shark noses before, so interesting that they aren’t connected to their mouths and have passive flow paths.

  • @silverjade10
    @silverjade10 11 месяцев назад +2

    Our purple hair colors match! Yusss!

  • @lubue5795
    @lubue5795 11 месяцев назад +24

    I feel like the throwaway comment that you shouldn't be worried about getting attacked by a shark is a bit too dismissive of the actual danger.
    Yes, shark attacks are very rare, yet a the video itself addresses the research of shark repellents and how it's used to make human shark interaction less dangerous. That wouldn't be something we need if there was no danger. After all, we're not actively researching cow repellent either (though we might should as more people die to cow attacks than to shark attacks).
    So, I wished that the answer here wouldn't have been a flat out "No" but a bit more detailed even if it isn't the main point of the video.

    • @wmpx34
      @wmpx34 11 месяцев назад +7

      You make a good point.
      Perhaps we should interpret the question as: “Is the probability of getting attacked by a shark while doing normal tourist activities at a beach high enough to worry about?” Phrased like that it makes more sense.
      Just like the chance of your plane crashing is always non-zero, but low enough to be negligible.

    • @HaloHighlightz
      @HaloHighlightz 11 месяцев назад

      I agree with what you said wholeheartedly. But I got stuck on the more ppl die by cows than sharks, really??

    • @Moamanly
      @Moamanly 11 месяцев назад +1

      @@HaloHighlightz I got stuck on "might should"; is that a common phrase in your neck of the woods?

    • @AndrewMcColl
      @AndrewMcColl 11 месяцев назад +2

      @@HaloHighlightz when you consider how many people work with cattle on a daily basis, how many people encounter cattle without knowing how to act around them, the average size of cattle herds, and the surprisingly low number of fatal shark attacks, it makes sense.

  • @twohumm2445
    @twohumm2445 11 месяцев назад +4

    Loved this video! Sharks are so cool. Learning about biology is fascinating

  • @prettypic444
    @prettypic444 11 месяцев назад +4

    Fun fact: Julia Child created an early shark repellant during her OSS days. it's often referred to as her first "recipe"!

  • @aliskprado
    @aliskprado 11 месяцев назад +3

    The nose knows!

  • @caimstear
    @caimstear 11 месяцев назад +3

    this was a really cool look at sharks!

  • @DadysBoy.
    @DadysBoy. 9 месяцев назад

    "should you be worried about getting attacked by a shark while going to the beach?" NOOOOOOO .

  • @bruceshark5501
    @bruceshark5501 11 месяцев назад +2

    THANK YOU! ❤

  • @milodemoray
    @milodemoray 9 месяцев назад

    Here's a thought, when someone breaks wind, you actually get their matter in your nose, which is how we recognise it. Say what for a mask...?

  • @jellyfishes-png
    @jellyfishes-png 11 месяцев назад +2

    i ♥️ sharks

  • @maizie9454
    @maizie9454 11 месяцев назад +5

    turkey vultures easily can smell more than a mile away. lets have a documentary about them

  • @turbotreehouse9780
    @turbotreehouse9780 11 месяцев назад

    I saw that jar and i just knew it had to be ink. Thats so funny, the thought of milking a cuttlefish 😂

  • @chonglers1513
    @chonglers1513 11 месяцев назад

    These gta 6 graphics are absolutely amazing

  • @user-hy9gy9we3e
    @user-hy9gy9we3e 6 месяцев назад

    Love the sharksand the purple hair!!!

  • @chlorone
    @chlorone 7 месяцев назад

    woman "i dont want this in my nose let alone on my fingers..."
    me "i dont even want that in my environment let alone in the seawater what at some point will turn into our sweetwater by vaporising bla bla bla bla"

  • @jasonseymour4235
    @jasonseymour4235 11 месяцев назад +1

    I'm always happy to see research that will help the environment, sharks, and humans live together into the future, I can't help but see significant flaws in this study. Of all the shark species to use, Sphyrna tiburon does not seem like a good choice as they are unlike any other known shark with their omnivorous diet. 62% of their diet, by mass, is sea grass. As such, it's pretty much guaranteed that olfactory cues and responses in this species will differ dramatically compared to the very predatory Carcharhinus limbatus. Perhaps the less predatory shark can be discouraged via cuttlefish ink more so than a species that doesn't eat mostly plants? And what effect does cuttlefish ink have on driving away other animals we don't want to disturb, like parrotfish or manta rays?
    This study, or at least what was presented to us, provides no evidence for how sharks that actually attack people would be affected and no evidence on how threatened harmless species, including close relatives like mantas will be affected. These two points may seem to conflict, but that certainly isn't the case. It certainly possible that bull, requiem, or white sharks would not be fazed while mantas could be repelled. There is a lot more work that needs to be done to see if this is useful information.

  • @itsdonaldo
    @itsdonaldo 11 месяцев назад +1

    We can smell smoke from miles away.

    • @RobertSaxy
      @RobertSaxy 11 месяцев назад +1

      We can not smell anything until the molecules reach our noses so what we smell is right under our noses, we can then infer direction and distance together with other senses and if we’re upwind from the smoke we won’t smell it at all

  • @RobertSaxy
    @RobertSaxy 11 месяцев назад

    Ok peps in order to smell anything no matter what creature you are the molecules must enter your nose. Those molecules might have come from far away, miles even, but when we smell them we are smelling the molecules in our noses not the molecules miles away

  • @paddor
    @paddor 11 месяцев назад

    Would have loved to hear how the water gets pushed in (is it the head shakes?) instead of hearing the anatomy twice.

  • @blahsomethingclever
    @blahsomethingclever 11 месяцев назад +5

    My hobby is making and collecting stinky chemicals. Even people can smell a single small drop of something from a mile away.

    • @randyforsnow9712
      @randyforsnow9712 11 месяцев назад +7

      I can smell bullshit from 100s of miles away😂😊

    • @Dumbledore6969x
      @Dumbledore6969x 11 месяцев назад +3

      You would love to capture the scents I produce after eating tofu

    • @lenabreijer1311
      @lenabreijer1311 11 месяцев назад

      And it doesn't matter if people aren't interested in the smell.

    • @junglechick13
      @junglechick13 10 месяцев назад

      ​ SBDs? 😂 @@Dumbledore6969x

    • @slimtweezy2864
      @slimtweezy2864 4 месяца назад

      So we're just making shit up now?

  • @chlorone
    @chlorone 7 месяцев назад

    Human female: ooooh look at them they are sooo cute
    Shark: oh no not again two of those ugly 2 leged landcrawlers. i can sense their stinky synthetic smell from miles away. i dont even want to eat them when they come into my territory. whenever i can i just take revenge for every of my brother and sisters, that their ancestors killed ruthlessy in the past.

  • @fraliexb
    @fraliexb 11 месяцев назад +1

    11:00 I hate when I get water in my nose.

  • @WilhelmDrake
    @WilhelmDrake 11 месяцев назад +5

    This experiment would be a lot more meaningful if it was double blind with multiple targets.
    Every experiment should involve a logician, an experimentation expert and a domain expert.

    • @Timmycoo
      @Timmycoo 11 месяцев назад +12

      I hope you don't think the entire study was what we just saw. This was just proof of concept.

    • @lenabreijer1311
      @lenabreijer1311 11 месяцев назад +2

      It probably was. But this is a video illustrating what was found. It is not the actual study itself. I doubt you want to watch a 1000 hours of little sharks circling a piece of plastic.

  • @FerdinandoFormica
    @FerdinandoFormica 11 месяцев назад

    funny, cuttlefish ink is pretty tasty to humans: it makes a mean risotto

  • @huldu
    @huldu 11 месяцев назад +1

    That's a big misleading least to say, I'm sure it depends on the shark but let me tell you if you're a human and you jump into the ocean to swim alongside white sharks and cuddle with them, you're food. Period.

  • @Treeplanter73
    @Treeplanter73 11 месяцев назад +2

    I'm not sure ww2 sailor veterans would agree about sharks ignoring humans. BTW, very cute researchers.

  • @harrison1671
    @harrison1671 11 месяцев назад +2

    I love nature, but y'all might want to hire a writer. 😢

  • @Misteribel
    @Misteribel 11 месяцев назад +1

    Leave it to Disney to perpetuate a myth. Remember the sharks from Nemo? That stuff is so ingrained in our dna meanwhile...

    • @trevinbeattie4888
      @trevinbeattie4888 11 месяцев назад +5

      Remember “Jaws” (1975)? Sharks were not seen as a particular threat to people before that film.

  • @kein_indianer
    @kein_indianer 11 месяцев назад +6

    Very disappointing video. Your scientist didn't even consider the hunger factor! We see more and more attacks on humans because they are struggling finding food.

    • @Raja-bz4yw
      @Raja-bz4yw 9 месяцев назад +1

      And we are coming in contact with them more as sharks are coming in towards the shores more. We believe this is due to the ocean temperatures changing and fish coming closer to shore which in turn forces the sharks to come close since they're chasing their food.

  • @endofdaysprophet
    @endofdaysprophet 11 месяцев назад

    Nature is nature and blue hair is UNNATURAL. Didn't watch because of it

    • @eric_has_no_idea
      @eric_has_no_idea 11 месяцев назад +10

      The Internet is not natural, I didn't read this.
      You should probably stay off of the Internet then.
      Also, purple. People who don't know the difference are unnatural, and I didn't read this comment because of this.
      🙄

    • @Jiddy12345
      @Jiddy12345 11 месяцев назад

      that's purple you colorblind zealot

  • @kenster8270
    @kenster8270 11 месяцев назад +1

    Super fascinating and enlightening stuff!
    And also: awesome chemistry between Jasmin and the shark lady! 🦈🧪