How Do Sharks and Rays Use Electricity to Find Hidden Prey? | Deep Look

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  • เผยแพร่เมื่อ 24 ม.ค. 2025

ความคิดเห็น • 248

  • @wiertara1337
    @wiertara1337 9 ปีที่แล้ว +376

    Love that high quality.

    • @KQEDDeepLook
      @KQEDDeepLook  9 ปีที่แล้ว +40

      Wojtek Kiraga Come back for more! We have some fun ones in production right now.

    • @mrstocks
      @mrstocks 8 ปีที่แล้ว +1

      +Deep Look No facts at the end ? :(

    • @jhayworth1234
      @jhayworth1234 3 ปีที่แล้ว

      TRUUU

  • @margaretteragram9235
    @margaretteragram9235 9 ปีที่แล้ว +110

    People can have magnets implanted in their fingers which allow them to physically feel electric fields. They're not super sensitive but you can feel the fields around appliances and chargers, for example, or determine whether an item is magnetic.

    • @KQEDDeepLook
      @KQEDDeepLook  9 ปีที่แล้ว +26

      ***** I guess it would be from the subcutaneous magnets moving, being pulled upon?

    • @notpulverman9660
      @notpulverman9660 7 ปีที่แล้ว +16

      That's just a form of touch.

    • @jr.researcherbarrett9018
      @jr.researcherbarrett9018 5 ปีที่แล้ว +6

      You beat me to it. I've been considering subdermal magnetic implants for years but still cant decide. People who have them say it's more than just the sense of touch, that over time it allows them to feel the magnetic fields.

    • @KohlDayvhis
      @KohlDayvhis 4 ปีที่แล้ว +1

      @@jr.researcherbarrett9018 That sounds awful lol, ever seen better call saul?

    • @kirklanyoshinaga8953
      @kirklanyoshinaga8953 2 ปีที่แล้ว

      @@jr.researcherbarrett9018 I’d say that it’s one small step to becoming magneto. 😁

  • @observingrogue7652
    @observingrogue7652 8 ปีที่แล้ว +314

    So this is why sharks chew undersea cables?

    • @SirFancyPants21
      @SirFancyPants21 7 ปีที่แล้ว +35

      Observing Rogue Many sharks also just eat whatever they can find, especially tiger sharks

    • @ImbaXtreme
      @ImbaXtreme 7 ปีที่แล้ว +26

      Observing Rogue i think underwater cables are fiber optics

    • @ausintune9014
      @ausintune9014 7 ปีที่แล้ว +30

      they are fibre optic and they produce no electric field

    • @notpulverman9660
      @notpulverman9660 7 ปีที่แล้ว +15

      Observing Rogue underwater fiber optic cables don't carry electricity

    • @notpulverman9660
      @notpulverman9660 7 ปีที่แล้ว +16

      (They carry light)

  • @tron-8140
    @tron-8140 9 ปีที่แล้ว +131

    1:40 lol, poor bugger, bad day haha

  • @ramgowda5859
    @ramgowda5859 5 ปีที่แล้ว +44

    For us it's just a short video but behind this it's a huge hard work, many people's, lot of time, dedication.....
    Thanks for all your videos......

    • @educationforblind6362
      @educationforblind6362 ปีที่แล้ว

      Its called just ampulla, not ampullae of lorenzini.

    • @ramgowda5859
      @ramgowda5859 ปีที่แล้ว +1

      @@educationforblind6362 sorry, I didn't get you. Can i have alternate sentence

    • @educationforblind6362
      @educationforblind6362 ปีที่แล้ว

      @@ramgowda5859 its called electroreceptors

  • @benbennit
    @benbennit 8 ปีที่แล้ว +120

    These forms of life experience and measure a very different universe from us.

    • @notpulverman9660
      @notpulverman9660 7 ปีที่แล้ว +3

      It wouldn't work in air.

    • @robwalsh9843
      @robwalsh9843 4 ปีที่แล้ว

      They are much older than us for one thing.

  • @guivecchi
    @guivecchi 9 ปีที่แล้ว +62

    Gorgeous and awesome video, like always! Keep the good quality, your videos are incredible!

  • @josephnoeske2676
    @josephnoeske2676 4 ปีที่แล้ว +3

    I read a study on this exact thing. The ampullae are filled with a gel that acts as a thermo-electric semi-conductor. This means that As electric fields affect the fluid, it heats and expands ever so slightly, and that is how the sharks can "feel" electricity. The shark feels the expansion and heat from the semi-conductor that fills the ampullae.

  • @Angel-fe4gs
    @Angel-fe4gs 8 ปีที่แล้ว +9

    Your work is really incredible, amazing, I love it; one of the best channels I've found, the music fits really well with every situation , the narrative is nice to listen and the best is the incredible scenes and macro shots in every single video. Thank you for this really good work.

  • @andrewpotapenkoff7723
    @andrewpotapenkoff7723 8 ปีที่แล้ว +52

    Feeling electricity is like feeling warmth, i guess.

    • @brendapereda8841
      @brendapereda8841 5 ปีที่แล้ว +2

      its different they feel the ion change with specialised cells, not like us that we dont have it

    • @zarodgaming1844
      @zarodgaming1844 5 ปีที่แล้ว

      and touch as well ...
      voice actress seems so hyped,
      she gonna be so disappointed if we can do this in the future xD

    • @VictorKDurand
      @VictorKDurand 3 ปีที่แล้ว +1

      interesting.. that's actually quite plausible indeed. @brenda, btw you're answering the "how does it work" which is very interesting in its own right. but @andrew was answering "how would it FEEL". different questions.

    • @andrewpotapenkoff7723
      @andrewpotapenkoff7723 3 ปีที่แล้ว +1

      @@VictorKDurand Once during cold weather i was smoking at the entrance of my home, there were no wind, and i noticed that i can feel the heat from the building with my cheecks with my eyes closed, and i could actually tell where exactly and how far was the wall.
      That's why i'm thinking this analogy.

  • @polari7658
    @polari7658 3 ปีที่แล้ว +1

    "None of this explains what it's like to feel electricity"
    This feel like lightning strike envy to anyone else?

  • @leilanidababe8146
    @leilanidababe8146 6 ปีที่แล้ว +12

    If you had taught me in science class I wouldve probably learned more

  • @kieungan7875
    @kieungan7875 7 ปีที่แล้ว

    This is really beneficial to visualize and simplify the Ielts listening test, part 4 as it is mostly about popular science, the hardest section to achieve expected points. This test is becoming increasingly popular in Vietnam.

  • @ZeroGDucks
    @ZeroGDucks 8 ปีที่แล้ว +37

    So wait, humans didn't invent radio... Stingrays and sharks did! ;)

    • @notpulverman9660
      @notpulverman9660 7 ปีที่แล้ว +10

      NOPE.
      The rays cannot interpret anything. They can only feel "there is something else there."
      The rays are only able to receive the signals, they cannot send information.
      So no.

    • @mabeloduro-tabi1084
      @mabeloduro-tabi1084 3 ปีที่แล้ว

      Uhhh no they didn’t

  • @ironmountain7907
    @ironmountain7907 7 ปีที่แล้ว +2

    This channel is really a gem on TH-cam, great content!

  • @stickfigtree
    @stickfigtree 5 ปีที่แล้ว +1

    What strikes me as fascinating is how the ampulae remind me of an eye. Socket filled with a jelly like medium and lined with electro-sensitive cells. It's almost like they see the electric pulses as blinking beacons.

  • @juxtra6113
    @juxtra6113 6 ปีที่แล้ว +1

    I learned about ampulae from Endless Ocean 2. It's a shame those games weren't more popular. They were so informative!

  • @Buckets41369
    @Buckets41369 8 ปีที่แล้ว +1

    The colour spectrum is just the increasing (or decreasing) wavelength/frequency of EM waves. Maybe these Elasmobranchs have different colours for electricity.
    Also the most interesting part is that when a human senses something from afar, the receptors are densely packed into organs (retina, eardrum, nasal membrane) but our skin has receptors all over giving us a more tactile experience to things that we can touch.
    Since the electro receptors are spread across the body, does that mean the animal 'feels' the electricity in the way we feel objects? Does it feel like they are touching everything nearby without actually coming into contact with it?

  • @inkedseahear
    @inkedseahear 6 ปีที่แล้ว +2

    I love it when the second they flipped the switch the Ray immediately lamps on the spot. Or was it just nice editing, either way it's halirous

  • @Greywander87
    @Greywander87 8 ปีที่แล้ว +4

    I'm reminded of a story I heard about someone who had a magnet surgically implanted into his fingertip. It let him sense electromagnetic fields, which actually turned out to be kind of a pain considering all the electronic and electrical devices we use. Something as simple as using the microwave could be a painful experience if it caused the magnet to flip over under his skin. I think he eventually had the magnet removed, but I can't quite recall.

  • @legendarymigsz8753
    @legendarymigsz8753 8 ปีที่แล้ว

    This Channel should be 1 Million subs.

  • @Drunk_Bishop
    @Drunk_Bishop 7 ปีที่แล้ว

    I wish there were more subscribers. i guess i can share this around. i really love the vivid style thats done here

  • @jaZZfanaticable
    @jaZZfanaticable 7 ปีที่แล้ว +1

    HIGH QUALITY VIDEOS GUYS! love your content

  • @jacklynyeh4893
    @jacklynyeh4893 8 ปีที่แล้ว +8

    waow this is gorgeous and very educational. i feel like a smart now!!!

    • @KQEDDeepLook
      @KQEDDeepLook  8 ปีที่แล้ว +13

      Jacklyn I am sure you were already smart, but now you have a new story to share.

  • @youxarexmyxsunshine
    @youxarexmyxsunshine 5 ปีที่แล้ว +1

    Thank you. Very educational.

  • @sagomatopi
    @sagomatopi 8 ปีที่แล้ว

    liked the script and the approach on this one. "so how does it feel to feel electricity? We don't know, we can't" :)

  • @Itsjustvideos
    @Itsjustvideos 7 ปีที่แล้ว

    I just want to say... I subscribed in 2017... but now I'm going back to watch all your content because of how amazing they are! and yes... I am spreading the word!

  • @Luke__Whelan
    @Luke__Whelan 7 ปีที่แล้ว

    Very cool video, as always. As sorry as I feel for the fish at 1:38, can't deny it's kinda funny...like it's been put on a clothes line underwater or something lol

  • @rocketman1058
    @rocketman1058 8 ปีที่แล้ว +5

    The canal transmits the electricity in the same way the optic fiber works, that's amazing!!!

  • @sethsteele7163
    @sethsteele7163 6 ปีที่แล้ว +1

    There is also evidence that the ampuli can detect temperature changes of as little as 1 millionth of a degree, probably Celsius

  • @ВладиславГуменюк-щ1е
    @ВладиславГуменюк-щ1е 9 ปีที่แล้ว +6

    Zero dislikes. Congratulations!

  • @loyalty5004
    @loyalty5004 4 ปีที่แล้ว

    I love your guys channel so much

  • @jbtalkalot
    @jbtalkalot 7 ปีที่แล้ว +1

    Awesome videos keep it up

  • @bloodlxlart9958
    @bloodlxlart9958 5 ปีที่แล้ว +1

    Why don’t they study an electric field that deters sharks and make it a wristband for surfers

  • @joshcassidy7270
    @joshcassidy7270 9 ปีที่แล้ว +31

    Hi, I’m Josh Cassidy and I produced this episode of Deep Look. Check out this article to learn more about how sharks and rays sense electric fields (goo.gl/FKNCM9). You can also check out Steven Kajiura’s experiments into elasmobranch electroreception (www.science.fau.edu/sharklab/pages/research.html) at Florida Atlantic University and Marine Science Institute's work to teach students about SF Bay Area marine wildlife (www.sfbaymsi.org/index.html). Let me know if you have any questions. Cheers!

    • @brandonhall6084
      @brandonhall6084 8 ปีที่แล้ว +1

      These videos are amazing! and the amount of interaction you guys have with your audience is incredible. Keep up the good work!

    • @joshcassidy7270
      @joshcassidy7270 8 ปีที่แล้ว +1

      Thank you very much. We love making these shows.

    • @SunnyApples
      @SunnyApples 7 ปีที่แล้ว +2

      You did an amazing job!

  • @RedDragon1175
    @RedDragon1175 5 ปีที่แล้ว +1

    So when the tv is turned or or my phone dies, I can feel that. Or in my phones case the lack of. Sometimes I can even here the tv being turned on. It feels similar to someone else being in the room with you that you can’t see. That spike or absence of electricity.

  • @ispilloil
    @ispilloil 5 ปีที่แล้ว

    Evolution is incredible!

  • @gibillanmagnificul8653
    @gibillanmagnificul8653 8 ปีที่แล้ว +1

    highest quality content. thanks!

  • @juanpablomina1346
    @juanpablomina1346 8 ปีที่แล้ว

    Only 39 comments? These videos are awesome!

  • @pravia731
    @pravia731 8 ปีที่แล้ว +2

    Hey, guys, I'M INLOVE WITH YOUR WORK! Your clips are awesome, thanks a lot for this! Wolud you like to make videos with spanish too?

  • @VyvienneEaux
    @VyvienneEaux 4 ปีที่แล้ว

    Wow! I already knew about electroreception and my mind was still blown!

  • @alessandrorossi1158
    @alessandrorossi1158 8 ปีที่แล้ว +19

    Great video! Just a couple of pronounciation tips: "Stefano" is actually pronounced with the stress on the first syllable (STEfano) and "ampullae" is pronounced with the stress on the second syllable (amPULlae)
    Keep up with the good job!

    • @jmof0464
      @jmof0464 6 ปีที่แล้ว

      Alessandro Rossi in

    • @santiagocarreno5881
      @santiagocarreno5881 6 ปีที่แล้ว

      If you have to correct such a minimal insignificant thing, is because you are sore loser

  • @linjhaebrucal4682
    @linjhaebrucal4682 6 ปีที่แล้ว

    I love this channel high quality love it

  • @13hcarlos
    @13hcarlos 7 ปีที่แล้ว +1

    Wonderful content. Thanks for uploading.

    • @KQEDDeepLook
      @KQEDDeepLook  7 ปีที่แล้ว

      You are welcome, Carlos.

  • @mikeblissett608
    @mikeblissett608 9 ปีที่แล้ว +1

    Love your channel! How about a video on horseshoe crabs, the "living fossils" and their surprisingly primitive immune system?

  • @AtlasTriple
    @AtlasTriple 6 ปีที่แล้ว

    Channel needs more subscriberssss

  • @Jillybean711
    @Jillybean711 8 ปีที่แล้ว +1

    They can detect electricity...? So no wonder sharks dislike magnesium and avoid it. It probably overrides their senses, and causes them to panic.

  • @Oonjjjhjjbbhjjjjhb
    @Oonjjjhjjbbhjjjjhb 5 ปีที่แล้ว

    The rays face is adorable

  • @W.E.N.D.I.G.O
    @W.E.N.D.I.G.O 9 ปีที่แล้ว +6

    Amazing!

  • @Rouenx
    @Rouenx 8 ปีที่แล้ว +1

    this is great tbh

  • @linjhaebrucal4682
    @linjhaebrucal4682 6 ปีที่แล้ว +1

    Love it I'm gonna subscribe it

  • @DokesConspiracyNetwork
    @DokesConspiracyNetwork 9 ปีที่แล้ว +2

    oh my gosh, super coool!

  • @giapchin
    @giapchin 8 ปีที่แล้ว +1

    Cool stuff. Instant subscribe.

    • @KQEDDeepLook
      @KQEDDeepLook  8 ปีที่แล้ว

      +Giap Chin Thanks for watching and subscribing!!

  • @libratyanjhon3959
    @libratyanjhon3959 6 ปีที่แล้ว +1

    This channel deserves more subscribers and views. Quality over quantity.

  • @donhouse2920
    @donhouse2920 7 ปีที่แล้ว

    Your awesome Amy keep the vlogs coming please

  • @ghostboi1738
    @ghostboi1738 5 ปีที่แล้ว +1

    So this is why a baby shark ate my phone.

  • @EckosamaGhostTsushima
    @EckosamaGhostTsushima 3 ปีที่แล้ว +1

    so this is the ninth sense, after proprioception nociception
    I was looking for this for a while, and there are other senses, like elephants and sub audible sound seeing infrared etc

  • @andrewpotapenkoff7723
    @andrewpotapenkoff7723 8 ปีที่แล้ว +5

    Josh Cassidy, thank you! Keep up good work!

  • @OddWomanOut_Pi81
    @OddWomanOut_Pi81 7 ปีที่แล้ว

    Rays are just fascinating creatures.

  • @dan240393
    @dan240393 6 ปีที่แล้ว +1

    Its based on my faulty human perceptions and logic, but I would imagine it would be kinda like pins-and-needles. A sort of tingling, prickly sensation.

  • @unluckycat7283
    @unluckycat7283 6 ปีที่แล้ว

    Amazing video!

  • @JA-fu5yw
    @JA-fu5yw 5 ปีที่แล้ว

    I just learned something today! Thank you 💛

  • @ArleneDKatz
    @ArleneDKatz 2 ปีที่แล้ว

    Thank you

  • @shericontrary2535
    @shericontrary2535 5 ปีที่แล้ว +1

    Us humans do have that ability. We just need to pay attention to it.

  • @Daladari
    @Daladari 6 ปีที่แล้ว

    An idea I have to help is to replicate what the scientists did with the Ray but on a larger scale. Use the pulses to draw them away from the nets, or fishing locals as a whole, this tactic may require a bit of troubleshooting but its simple and it doesnt hurt anything.

  • @chantingzhang
    @chantingzhang 6 ปีที่แล้ว +1

    so that is a fish detecting RAYdar......amazing

  • @ChimpFromSpace
    @ChimpFromSpace 9 ปีที่แล้ว

    It probably feels similar to when you touch a highly charged balloon, like if you rub a balloon on a carpet. The difference being Sharks and Rays would be much more sensitive to this sensation.

  • @_kadae
    @_kadae 7 ปีที่แล้ว

    How do you get this type of shots and quality?

  • @cosmopoiesecriandomundos7446
    @cosmopoiesecriandomundos7446 6 ปีที่แล้ว

    I love this thing of other animals' senses. Usefull for worldbuilding, believe me. When creating animals, I think on how they "see" their worlds with different senses. Maybe their hearing is so complex that the can form 3d images in their heads, like bats. Or maybe they smell chemicals that help them in comunication, like ants do. Or even maybe their major sense is the on of toutch, and the can feel the most sutile vibrations, like elephants. Or, if all the other animals produce electromagnetism, thats the best thing to feel.

  • @varshayadav4855
    @varshayadav4855 6 ปีที่แล้ว

    *just love your videos*
    *pz do bring more of these*
    😉

  • @hcn6708
    @hcn6708 8 ปีที่แล้ว

    It's mostly like smell since it can detect deferent frequencies of electricity.

  • @aaryashankar8661
    @aaryashankar8661 4 ปีที่แล้ว

    That,s awesome!

  • @ahsanhabibprince2838
    @ahsanhabibprince2838 4 ปีที่แล้ว +1

    Oh, I'm gonna miss Lauren sooooo much 😭😭😭😭

  • @HagathaHexMe
    @HagathaHexMe 7 ปีที่แล้ว

    Is it possible to create an electrical current nullifying net? Cause in some beaches they use nets to keep sharks away and I think a net like this can do a better job.

  • @indianinvasion9764
    @indianinvasion9764 4 ปีที่แล้ว

    3:03
    3:25 Humans have Magnetite crystals in the brain similar to Bacteria.
    P.S. This is a stingray not electricray
    Playtapus has electroreceptors

  • @minty_eggs
    @minty_eggs 7 ปีที่แล้ว

    The tied up fish is hilarious to me for some reason

  • @dogek9unit826
    @dogek9unit826 9 ปีที่แล้ว

    i learn something new today yay

  • @ShadeMeadows
    @ShadeMeadows 7 ปีที่แล้ว +1

    He is mouthing some words!

  • @tanguylwk9785
    @tanguylwk9785 8 ปีที่แล้ว +1

    C est tro coooooouuuuul

  • @probliss2193
    @probliss2193 5 ปีที่แล้ว

    Amazing

  • @claustrophobicastronaut9318
    @claustrophobicastronaut9318 6 ปีที่แล้ว

    so the voltage produced by the fish is similar to our sound of breathing right

  • @chengtarng9476
    @chengtarng9476 6 ปีที่แล้ว

    Why does the exposure of mucus membranes with salty water create voltage?

  • @ImbaXtreme
    @ImbaXtreme 7 ปีที่แล้ว

    we can detect it easily like a simple.tingling jolt.

  • @garycarroll9447
    @garycarroll9447 4 ปีที่แล้ว

    You ever step out of a vehicle when the battery is low it has a way of letting you know it too gets me every time. that’s my electric 6th sense

  • @meep7979
    @meep7979 6 ปีที่แล้ว

    Would it work on dry ground?

  • @ariochiv
    @ariochiv 6 ปีที่แล้ว

    Since it's based on frequency but not focused, it probably is processed much like sound.

  • @d_dak1155
    @d_dak1155 7 ปีที่แล้ว

    Do freckled people have electroreception?

  • @walterwalter3035
    @walterwalter3035 6 ปีที่แล้ว

    what is better? ecolocation or this??

  • @Czesnek
    @Czesnek 5 ปีที่แล้ว

    I think it feels just like electrical vibrations, but not painful.

  • @johncgibson4720
    @johncgibson4720 8 ปีที่แล้ว

    The sense of electrical wave is trained on Electronic Engineering BS degree students, so that they can see the semi-circular smith chart of wave reflection and phase shift around the antenna spokes/spikes. That is not what ordinary people can see. Most people with a high school diploma, knows the magnetic field flux lines with a DC current passing through a metal rod/wire. But high school diploma does not teach you how to see the phase shifts/amplification/cancelations.

  • @--Paws--
    @--Paws-- 8 ปีที่แล้ว

    Electric Feel; line the oceans and land with electric fields and with electromagnetic capabilities. I wonder what animals on land or the air will interact with them; what will they do when these devices are turned on or tuned?

  • @alishbakhan6248
    @alishbakhan6248 3 ปีที่แล้ว

    Plz maake video on electric eel

  • @jawangabrus9590
    @jawangabrus9590 6 ปีที่แล้ว

    Make longer vedio

  • @AlienPizza38
    @AlienPizza38 6 ปีที่แล้ว

    Whoa😮

  • @lempamo
    @lempamo 5 ปีที่แล้ว

    music from Milieu!

  • @deanc.5984
    @deanc.5984 8 ปีที่แล้ว

    What kind of electrical field does a human emit? How can we detect it?

    • @JenniferYa
      @JenniferYa 7 ปีที่แล้ว

      That's probably pretty difficult to determine if you're referencing the way the video does it with the fish. With fish and other things that live underwater... well, they're underwater, so the salt water is able to carry a charge. Air usually acts as an insulator, so whatever electric field humans might 'emit' is likely insulated by the air that surrounds them. That could, however, change relying on two variables (minimum): if a human were placed in a substance (like water, assuming it's not deionized) that could conduct a change in voltage, and if a human was able to do something that would create that change in voltage. The second part is more difficult- humans can't breathe underwater, BUT there is something called liquid ventilation. Maybe if you submerged a human in a PFC they would create a change in voltage like a fish does (but that depends on whether PFCs can conduct a charge), but I honestly don't know enough about this subject to say anything more than that. But if you weren't talking about something similar to what the fish was doing, humans (and basically everything we can touch, from what I understand) basically are electrical fields. You can detect this by running into a wall and getting hurt. The electrons in the wall are repelling some of the electrons in your body that make contact with it, and then your neurons communicate that with electric currents (and chemicals). So I mean... the answer to your question is either a somewhat hypothetical answer, or a fairly apparent answer :)

  • @roygbiv330
    @roygbiv330 5 ปีที่แล้ว

    what is frequency range? to navigate ships/submarines, many counties build transmitters which send ultra low frequency waves. it seems the ulf waves dont influence on them since a wavelength is so long that their detectors cant detect. but the 4g mobile system uses 2-3ghz wave. as the base stations have ground earths in the coast areas, a ghz wave would come into sea water. the ghz wave doesnt propagate longly in the water. but the sharks would detect any of waves. any experiment result?

  • @quickfirefly6693
    @quickfirefly6693 7 ปีที่แล้ว

    amazing in 2018
    :)

  • @keeperofdragon409
    @keeperofdragon409 8 ปีที่แล้ว +1

    If you could feel electricity try going into a building full of batteries or building that uses a lot of electricity or basically any building. Either way you are going to feel a lot of stuff. Must be annoying.

  • @rebelbeammasterx8472
    @rebelbeammasterx8472 7 ปีที่แล้ว +1

    Use the electrical force!