How Elephants Listen...With Their Feet | Deep Look

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  • تم نشره في 2018/07/17
  • African elephants may have magnificent ears, but on the savanna, they communicate over vast distances by picking up underground signals with their sensitive, fatty feet.
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    DEEP LOOK is a ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Explore big scientific mysteries by going incredibly small.
    Thousands of elephants roam Etosha National Park in Namibia, a nation in southwest Africa, taking turns at the park’s numerous watering holes. The elephants exchange information by emitting low-frequency sounds that travel dozens of miles under the ground on the savannah.
    The sound waves come from the animals’ huge vocal chords, and distant elephants “hear” the signals with their highly sensitive feet. The sound waves spread out through the ground and air. By triangulating the two types of signals using both ears and feet, elephants can tune into the direction, distance and content of a message.
    Seismic communication is the key to understanding the complex dynamics of elephant communities. There are seismic messages that are sent passively, such as when elephants eavesdrop on each others’ footsteps. More active announcements include alarm cries, mating calls and navigation instructions to the herd.
    Seismic communication works with elephants because of the incredible sensitivity of their feet. Like all mammals, including humans, elephants have receptors called Pacinian corpuscles, or PCs, in their skin. PCs are hard-wired to a part of the brain where touch signals are processed, called the somatosensory cortex.
    In elephants, PCs are clustered around the edge of the foot. When picking up a far-off signal, elephants sometimes press their feet into the ground, enlarging its surface by as much as 20 percent.
    Strictly speaking, when elephants pick up ground vibrations in thei feet, it’s their sense of feeling, not hearing, at work. Typically hearing happens without physical contact, when airborne vibrations hit the eardrum, causing the tiny bones of the inner ear tremble and transmit a message to the brain along the auditory nerve.
    But in elephants, some ground vibrations actually reach the hearing centers of the brain through a process called bone conduction.
    By modeling how the elephant’s inner ear bones respond to seismic sound waves, scientists are hoping to use a bone-conduction approach develop new and better hearing aids for people. Instead of amplifying sound waves through the ear canal, these devices would transmit sound vibrations into a person’s jawbone or skull.
    --- Where did you film this episode?
    It was filmed in Etosha National Park in Namibia, at Menasha watering hole, which is closed to the public. We also filmed with the elephants at the Performing Animal Welfare Society (PAWS) sanctuary in San Andreas, Calif.
    --- Do all elephants communicate seismically?
    Both species of elephants - Asian and African - can pick up vibrations in their feet. There are some differences in anatomy between the two species, which cannot interbreed. Those include attributes related to their hearing, and probably arose as adaptations to their distinct habitats.
    ---+ Read the entire article on KQED Science:
    ww2.kqed.org/science/2018/07/17/how-elephants-listen-with-their-feet
    ---+ For more information:
    Visit Caitlin O’Connell-Rodwell’s non-profit, Utopia Scientific. You could even go with her to Africa: www.utopiascientific.org/Research/mushara.html
    Support the Performing Animal Welfare Society (PAWS): www.pawsweb.org
    ---+ More Great Deep Look episodes:
    These Whispering, Walking Bats Are Onto Something
    arclip.net/video/l2py029bwhA/فيديو.html
    For These Tiny Spiders, It's Sing or Get Served
    arclip.net/video/y7qMqAgCqME/فيديو.html

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    ---+ About KQED
    KQED, an NPR and PBS affiliate in San Francisco, CA, serves Northern California and beyond with a public-supported alternative to commercial TV, Radio and web media.
    Funding for Deep Look is provided in part by PBS Digital Studios. Deep Look is a project of KQED Science, which is supported by the Templeton Religion Trust and the Templeton World Charity Foundation, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Gordon and Betty Moore Foundation, the Fuhs Family Foundation Fund and the members of KQED.
    #deeplook #elephant #seismiccommunication
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تعليقات • 381

  • Deep Look
    Deep Look  سنوات قبل +313

    Hi, I'm Elliott, the producer of this episode. I thought it would be cool on our macro series to take a deep look at a much larger creature than usual. We had a great time filming the refuge elephants in California -- watch it to the end to see them! And please comment and ask questions here. Thx!

    • The Blake Group
      The Blake Group سنوات قبل

      Deep Look

    • Michelle Yin
      Michelle Yin سنوات قبل

      I wonder how Scientists found this out? Did they hear a rumble and think this was possible?

    • bubblegumcorn 20
      bubblegumcorn 20 سنوات قبل

      :D hi im an Eliot too! Not officially though because im a trans boy.. but it makes me happy to see more Eliot's cause it's not a common name :D

    • riyaz.14
      riyaz.14 سنوات قبل

      hi sir
      ur channel shows d best content i hv ever seen across youtube yet
      this helps me to get to know about things .i wish ur channel keeps going like this only and may rich 1M soon

    • True North Tactical
      True North Tactical سنوات قبل

      Adriano Adri what?

  • xdjessicalady
    xdjessicalady أشهر قبل

    This deserves more views!!! Thank you for teaching me fun and knowledgeable things!!!

  • Idk...🖤😭
    Idk...🖤😭 أشهر قبل

    They gtf 3:00

  • mk1 proto boi
    mk1 proto boi أشهر قبل

    worms and moles: is there another earth quake?

  • Chokri Braham
    Chokri Braham 3 أشهر قبل +1

    how did they know that the elephants weren't about to crush the camera

  • elif yagmur duran
    elif yagmur duran 3 أشهر قبل

    so they’re like toph!!!!!

  • A Joy Forever
    A Joy Forever 3 أشهر قبل +1

    Nobody :
    Elephant's Foot : *_YOU GOT A MESSAGE.._*

  • Ba Ri
    Ba Ri 3 أشهر قبل

    People that hunt or hurt these gracious creatures need to be hung.

  • TigerToxins U
    TigerToxins U 4 أشهر قبل

    i feel like elephants would make bad physicians

  • Amariyana Blair
    Amariyana Blair 4 أشهر قبل

    *so we just gone ignore that HI that baby elephant was telling is🤷🏽‍♀️*

  • K
    K 5 أشهر قبل

    Cute everything.

  • K
    K 5 أشهر قبل

    They have cute feet.

  • K
    K 5 أشهر قبل

    Elephants are so cute.

  • Henney Kingsley
    Henney Kingsley 5 أشهر قبل

    this is pretty intresting stuff

  • Saskloch Delfino
    Saskloch Delfino 5 أشهر قبل

    1:00 its like they are dinosaurs

  • Cyrus Zeylee Kariuki
    Cyrus Zeylee Kariuki 6 أشهر قبل

    Wow

  • StarlightKY
    StarlightKY 6 أشهر قبل

    The original Earthbenders.

  • im baby thooo
    im baby thooo 6 أشهر قبل

    is that toph omg

  • Paper Towwl
    Paper Towwl 6 أشهر قبل

    I FREAKIN LOVE ELEPHANTS SO MUCH

  • raj Raj
    raj Raj 6 أشهر قبل

    Ohh my God this big beast blessed with special power!!! . Interesting thing. Thanks for information.

  • Jay Luv
    Jay Luv 7 أشهر قبل

    I love elephants so much ❤️

  • Seren Ryuu
    Seren Ryuu 7 أشهر قبل

    their high frequency sounds only go a short distance. yknow like, only a mile.
    man if i could scream from a mile away

  • Nibedita Basu
    Nibedita Basu 7 أشهر قبل

    Amazing man...I sometimes fail to understand the hubris that the human race exhibits. The animal kingdom is rife with such wonders. We learn from them ( biomimicry) but still consider ourselves the best ever creation of God. Well if that is the case then how come we can't make food in our bodies, regrow out amputated hands, listen through feet ( I mean enough to perceive).

  • Barroow
    Barroow 8 أشهر قبل

    How your foot looks like when you finish the marathon. 2:07

  • Pussy Juice
    Pussy Juice 8 أشهر قبل

    1:08 anyone else felt anxiety for that camera?

  • Ohcirej Gaming
    Ohcirej Gaming 8 أشهر قبل +1

    Does this mean we could use our belly fats to hear? 🤔

  • Yuffie Kisaragi
    Yuffie Kisaragi 9 أشهر قبل

    Elephants never fail to amuse me

  • Alamin Ohaj
    Alamin Ohaj 9 أشهر قبل

    This is interesting, someone told me about a group of people in the red sea mountains who can detect or listen to upcoming lorries by listening to the ground. I didn't believe it but , Can human learn to use this skill?

  • f Forecast
    f Forecast 9 أشهر قبل

    That’s actually incredible

  • pudy
    pudy 9 أشهر قبل

    people gonna start taking off their feet for "medicine now", but still awesome video

  • Matt Speirs
    Matt Speirs 9 أشهر قبل

    2:55 that's a man or a man pretending to be a girl, I've never seen such aftershave on a real lady

  • Mashrufa Hussain
    Mashrufa Hussain 10 أشهر قبل

    So toph was lying

  • Andy Ferguson
    Andy Ferguson سنوات قبل

    And that’s why elephants that live in cities or countries such as India have it bad. All those city noises and vibrations coming thru their feet stresses them out.

  • Dislike Bot
    Dislike Bot سنوات قبل

    Anyone getting the toph vibe from this?

  • Evan Hinojosa
    Evan Hinojosa سنوات قبل

    1:58 Ewwww, Why did they show THAT?!?

  • Sky mark
    Sky mark سنوات قبل +1

    Did the elephants tell that to you?

  • Dara Wulan
    Dara Wulan سنوات قبل

    Does this mean elephants wear “natural high heels”????

  • Rifki N R
    Rifki N R سنوات قبل +1

    the scientist is pranking the elephants lol

  • qiaoran li
    qiaoran li سنوات قبل

    I see some elephants’ teeth are gone!

  • harsh singhal
    harsh singhal سنوات قبل

    Elephants are just so cute.

  • J. Cabarles
    J. Cabarles سنوات قبل

    Doesnt snake does that too? Like they put their jaws on the ground and listen to the vibrations and it makes them hear.

  • Dimetrodon 22
    Dimetrodon 22 سنوات قبل

    An interesting parallel to this is how whales can communicate across hundreds of miles away, although they use sound in a more conventional way.

  • Greywander
    Greywander سنوات قبل

    They sense vibrations through the ground? That sounds fake. Clearly they just release a sonic wave from their mouth.

    Glad to see other Avatar fans in these comments.

  • Normal Enderman
    Normal Enderman سنوات قبل

    So elephants can talk. 😃

  • Mimi Me
    Mimi Me سنوات قبل

    Very interesting, thank you!

  • holboroman
    holboroman سنوات قبل

    Surveillance on the Savannah!

  • Arya P. Dipa
    Arya P. Dipa سنوات قبل

    Can we get elephants' help to detect eart quake? (・ิω・ิ)

  • Queen Ditty
    Queen Ditty سنوات قبل

    I'm moving to African. I need an elephant

  • Queen Ditty
    Queen Ditty سنوات قبل +1

    ELEPHANTS HAVE THE CUTEST FEETS EVER!! Seriously nature ?ROUND FEET! Really? Round flat feet 😍😍 God was like " watch this I'm gonna give this biggest land animal the cutest feet"

  • Milo Estobar
    Milo Estobar سنوات قبل +1

    2:07 Have urge to put lego under!

  • Geremy Shaw
    Geremy Shaw سنوات قبل +1

    I was thinking how its silly how they got scared of a recording, but then i thought how scary it is to hear a recording of someone screami g out of nowhere.

  • LaNiya Davey-Williams
    LaNiya Davey-Williams سنوات قبل

    Love this channel ❤️

  • Zedify
    Zedify سنوات قبل

    must have been dangerous!

  • MottyGlix
    MottyGlix سنوات قبل

    In the elephant refuge, if daily life "wears away" the foot pad, why do the pedicures scrape them away further? Shouldn't regrowth of the foot material be encouraged instead?

  • Royal Ninja
    Royal Ninja سنوات قبل +1

    Can you include metric system please? I reAlly get confused sometime

  • ltsmx
    ltsmx سنوات قبل

    just spent the weekend binge-watching all your videos. amazing job Deep Look! KEEP IT UP!

  • Ray Antonio
    Ray Antonio سنوات قبل

    Wow

  • Ανεξίτηλη Σκιά
    Ανεξίτηλη Σκιά سنوات قبل

    THIS CHANNEL IS A TREASURE... PLEAAAASE SHARE....

  • redskiez
    redskiez سنوات قبل

    Elephants think humans are cute the same way humans think puppies are cute. True or false?

  • glitch
    glitch سنوات قبل

    Amazing. visualizing sound emissions... Where can I request this feature?