How Your Dog's Nose Knows So Much | Deep Look

  • تم نشره في 2019/02/26
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    Dogs have a famously great sense of smell, but what makes their noses so much more powerful than ours? They're packing some sophisticated equipment inside that squishy schnozz.
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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.
    --- How much more powerful is a dog’s sense of smell compared to a human?
    According to one estimate, dogs are 10,000-100,000 times more sensitive to smell than humans. They have about 15 times more olfactory neurons that send signals about odors to the brain. The neurons in a dog’s nose are spread out over a much larger and more convoluted area allowing them more easily decipher specific chemicals in the air.
    --- Why are dog noses wet?
    Dog noses secrete mucus which traps odors in the air and on the ground. When a dog licks its nose, the tongue brings those odors into the mouth allowing it to sample those smells. Dogs mostly cool themselves by panting but the mucus on their noses and sweat from their paws cool through evaporation.
    --- Why do dog nostrils have slits on the side?
    Dogs sniff about five times per second. The slits on the sides allows exhaled air to vent towards the sides and back. That air moving towards the back of the dog creates a low air pressure region in front of it. Air from in front of the dog rushes in to fill that low pressure region. That allows the nose to actively bring odors in from in front and keeps the exhaled air from contaminating new samples.
    ---+ Read the entire article on KQED Science:
    ---+ For more information:
    The Odor Navigation Project funded NSF Brain Initiative
    Jacobs Lab of Cognitive Biology at UC Berkeley
    Ecological Fluid Dynamics Lab at University of Colorado Boulder
    The fluid dynamics of canine olfaction: unique nasal airflow patterns as an explanation of macrosmia (Brent A. Craven, Eric G. Paterson, and Gary S. Settles)
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    ---+ Shoutout!
    🏆Congratulations 🏆 to Branden W., Edison Lewis, Vampire Wolf, Haithem Ghanem and Droidtigger who won our GIF CHALLENGE over at the Deep Look Community Tab, by identifying the special region in the canine skull which houses much of the smell ability:
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  • علوم وتكنولوجياعلوم وتكنولوجيا

تعليقات • 715

  • Pankour Laut
    Pankour Laut 19 ساعات قبل

    83 escaped prisoners disliked this video

  • Kevin
    Kevin 4 أيام قبل

    this is why my dog know i hide cookies in my pocket.

  • Penny.
    Penny. 7 أيام قبل

    It *NOSE* so much..
    I ain’t funny..

  • Harry Jerry
    Harry Jerry 9 أيام قبل

    boop de snoot

  • Amani Windon
    Amani Windon 9 أيام قبل

    Please more dog videos

  • synchromorph
    synchromorph 11 أيام قبل

    I'm not certain, but it seems to me that they can smell three dimensionally, like we can see with our eyes.

  • wow cool vid thanks for sharing
    wow cool vid thanks for sharing 13 أيام قبل

    Now I know why my dog keeps on pooping on the same spot(in our garage) So I cleaned it so that the smell won't be present again, for him to find another place to poop out. But then I saw this video that their nose can sniff flashbacks. ohfuck

  • Borex Batulan
    Borex Batulan 16 أيام قبل

    Does my dog knows my ex girlfriend?

  • Sameer Bhoi
    Sameer Bhoi 19 أيام قبل

    I want to like more one or u ?

  • NoizyBoy201
    NoizyBoy201 19 أيام قبل

    This is my childhood PBS as it was!

  • one of repetition
    one of repetition 20 أيام قبل

    Omg so dogs have nose brain

  • one of repetition
    one of repetition 20 أيام قبل


  • Brianna Treadaway
    Brianna Treadaway 21 أيام قبل

    Not to be dramatic but I would die for Zinka (or however you spell it )

  • wan pi
    wan pi 21 أيام قبل


  • Mr. Stick
    Mr. Stick 21 أيام قبل

    *the nose that has an eye*

  • Rich F
    Rich F 23 أيام قبل

    She's a beautiful dog!

  • April Chan Sabio
    April Chan Sabio 27 أيام قبل

    Wow!!! Dogs are really amazing. This channel really teaches you about everything. Learned many things on this channel, I'm so lucky that I've subscribed here.

  • Ethan Evangelista Gamer
    Ethan Evangelista Gamer 27 أيام قبل +1

    The dog is cute!!!

  • PimpThe478
    PimpThe478 28 أيام قبل

    To me dogs noses look like a tasty piece of beef that I would like to eat with some Mac and Cheese or Some other delicious lunch.

  • y o
    y o أشهر قبل

    For overestimated (not to mention overrated) animals, it’s great that these guys have such unique skills.

  • Trihana Riza Putra
    Trihana Riza Putra أشهر قبل

    Nice information. Thank you :)

    ADMIRAL Ai أشهر قبل

    the snoof is the best part of the dog

  • xTony92
    xTony92 أشهر قبل

    Love this video / Channel ✌️

  • Toe Eater
    Toe Eater أشهر قبل

    The nose "KNOWS"

  • Molly Pinklight
    Molly Pinklight أشهر قبل

    >wow I never knew that< !!!!!!!!!!> it's so interesting cold you please do a dinosaur video because I don't know much about them

  • Jake Lennon
    Jake Lennon أشهر قبل

    I like being a deep peep

  • Darth Belal
    Darth Belal أشهر قبل

    Makes sense, Max the dachshund and Razzle the heeler mix, could find me no matter how well I tried to hide. Max could find me hiding in a dip in the ground in the middle of yard high grass and Razzle always knew when I was home and no matter which door I hid behind, I could hear her sniff then scratch at the door unerringly every single time. I miss them both.......

  • Cherea Tsai
    Cherea Tsai أشهر قبل


  • Nelson Roy
    Nelson Roy أشهر قبل

    Isn't it the voice from WatchMojo??

  • SpeedO'Philia
    SpeedO'Philia أشهر قبل

    Where are the GPS results? I watched the hole video waiting to see the results.

    PROJELLY HOAGIE أشهر قبل

    This channel reminds me of being a kid at my grandmas we used to watch PBS when they would shown cartoones but after words we would have nice cool shows like this glad I found this .

  • Young Don The Sauce God
    Young Don The Sauce God أشهر قبل

    We have a Belgian sheepdog it looks a lot like this one except it’s all black and much furrier

  • Unhappy Attendant Ughh
    Unhappy Attendant Ughh أشهر قبل


    TOBI OBITO أشهر قبل

    I love dogs so much! The narrator's voice is so soothing. This channel is awesome!

  • Avelino Rocha
    Avelino Rocha أشهر قبل

    what a good girl

  • vernon kacey gala
    vernon kacey gala أشهر قبل

    Awww ill call my dog "a champion sniffer" from now on

  • Joseph Helms
    Joseph Helms أشهر قبل

    Doggo does a search

  • ChubbyNP
    ChubbyNP أشهر قبل

    Just came to this channel and its SO awesome

  • Ryan Alexander
    Ryan Alexander أشهر قبل

    What did people do to deserve dogs?

  • Bubble Studio stop motion
    Bubble Studio stop motion أشهر قبل

    My dog farted for about a minute and I didn't know where it came from it just looked around confused

  • Max Anc
    Max Anc أشهر قبل

    Good girl

  • That Meme Girl
    That Meme Girl أشهر قبل

    I learn more on ARclip than in school

  • King Treedede
    King Treedede أشهر قبل

    Bad girl >;(

  • Vile Nation Gaming
    Vile Nation Gaming أشهر قبل

    Always wondered what the side slits were for. Thumbs up

  • Darkmoon The Direwolf
    Darkmoon The Direwolf أشهر قبل


  • LimeyLiamGaming
    LimeyLiamGaming أشهر قبل

    Ugh dogs nose it all

  • Dip Stick
    Dip Stick أشهر قبل


  • Chuy Renteria
    Chuy Renteria أشهر قبل

    They are also chopped off for playstation controller's analog sticks.

  • Whale Shark
    Whale Shark 2 أشهر قبل

    *The dog nose everything*

  • Mr. Cat
    Mr. Cat 2 أشهر قبل

    My nose can only smell food an im an expert good finder lol

  • Daniel Bermudez
    Daniel Bermudez 2 أشهر قبل

    Wow she can do that but meh dog who 7 years old still cant find out where the bathroom is

  • Sassy ASMR
    Sassy ASMR 2 أشهر قبل

    I’m right next to my dog 😂

    SARFARAZ ANSARI 2 أشهر قبل

    And fools say that there is no Creator.

  • Leong Li Yang
    Leong Li Yang 2 أشهر قبل

    i love dogs 😍😍😍
    the good old friend before phone replace be our friends

  • LMG10
    LMG10 2 أشهر قبل

    Don't use GPS use doggo

  • Lacking Gnat
    Lacking Gnat 2 أشهر قبل

    I want to pet.

  • Pun Gent.
    Pun Gent. 2 أشهر قبل

    Sadly, zinca hasn't been the same since. The treats left by her handler were laced with opiates and now Zica will snort literally anything.

  • johnchupin
    johnchupin 2 أشهر قبل

    Good pun -_-

  • Smokede m
    Smokede m 2 أشهر قبل

    She!? Why not HE!!!?

  • ItzAumeii
    ItzAumeii 2 أشهر قبل

    I just love doggos

  • V̤̮AL
    V̤̮AL 2 أشهر قبل

    I love the narratorsvoice

  • apokAlypse
    apokAlypse 2 أشهر قبل

    Dogs are amazing♥

  • Garnet Queen
    Garnet Queen 2 أشهر قبل

    “How Your Dog Is Nose So Much”

  • Brixtonette
    Brixtonette 2 أشهر قبل

    Ugh i just feel inlove a thousand times more (о´∀`о)

  • pratik shekokar
    pratik shekokar 2 أشهر قبل


  • PrankTVar
    PrankTVar 2 أشهر قبل +1

    What type of dog is that?

  • Wafaullah Mirbahar
    Wafaullah Mirbahar 2 أشهر قبل

    Dogs have a famously great sense of smell!

  • Aditya Guru
    Aditya Guru 2 أشهر قبل

    Now I understand that how my dog always know where I am.

  • Pia Oroceo
    Pia Oroceo 2 أشهر قبل

    This channel needs more subscribers.

  • I'm john to you
    I'm john to you 2 أشهر قبل


  • Widdle Boi
    Widdle Boi 2 أشهر قبل

    Does my dog know my true sexuality?

  • *A* *Name*
    *A* *Name* 2 أشهر قبل

    The boop snoot

  • Chris Ho
    Chris Ho 2 أشهر قبل

    it's rude to clip someone nose !

  • Lonley Giant
    Lonley Giant 2 أشهر قبل


  • GTA6clips
    GTA6clips 2 أشهر قبل

    I wonder if Warwick does this too? loo

  • Haki Core
    Haki Core 2 أشهر قبل

    i tried hiding from my dogs but the always finds me😃😃

  • Noah Myhre
    Noah Myhre 2 أشهر قبل

    amazing footage and information!

  • Joan
    Joan 2 أشهر قبل


  • ari
    ari 2 أشهر قبل

    What a good girl !!!!!!

  • Ryen Q
    Ryen Q 2 أشهر قبل

    This dog deserves all the bepis

  • Alan Valschi
    Alan Valschi 2 أشهر قبل


  • Lupix
    Lupix 2 أشهر قبل


  • Mola Mola
    Mola Mola 2 أشهر قبل

    Well Done Zinka

  • Nawal Sarah
    Nawal Sarah 2 أشهر قبل +1

    _It _*_nose_*_ a lot._

  • Diane Guilaran
    Diane Guilaran 2 أشهر قبل

    Good content.

  • Raven Clawy Orthodox
    Raven Clawy Orthodox 2 أشهر قبل

    Subscribing, viewing, and donating to this channel will help them produce more videos up close, and who knows, maybe even beyond that?

  • Potato
    Potato 2 أشهر قبل

    The nose nose😂

  • Rahim Claude Calpito
    Rahim Claude Calpito 2 أشهر قبل

    (Me after watching the vid)
    *touches my nose* demn Doggo.

  • LemonBird
    LemonBird 2 أشهر قبل +1

    wait so you’re telling me
    that my teeny weeny toy poodle dog
    can do all this?

  • Purrple Lemon
    Purrple Lemon 2 أشهر قبل

    So why do they follow the scent trail tho? Like, they can just smell it and leave it alone, but they choose to follow the scent.

  • memeless boi vlogs
    memeless boi vlogs 2 أشهر قبل

    Time traveling doggo nose finds out Egyptian mysteries!

  • The Bobz
    The Bobz 2 أشهر قبل

    DeepLook Idea : Why does a FlowerHorns have big Heads?

  • Nepali Rai
    Nepali Rai 2 أشهر قبل

    i want to boop the snoot and hug the doggo

  • best ever
    best ever 2 أشهر قبل

    The snout NOSE all.

  • Malicous YT
    Malicous YT 2 أشهر قبل +4

    I love how wonderful the inside of the dog looked like all the anatomy and how amazing it looked props to ur editors! Also you I love ur voice❤️🔥

  • keeth sepe
    keeth sepe 3 أشهر قبل +1

    Better than bright side

  • Max The German Shepherd
    Max The German Shepherd 3 أشهر قبل

    Cute ❤️

  • Wayne Wallace
    Wayne Wallace 3 أشهر قبل

    I once put my two week old unwashed socks upon my dog's nose....his reaction was priceless

  • santosh kotian
    santosh kotian 3 أشهر قبل

    Please make a Deep Look on silkworms life cycle and cocoon making process.

  • James
    James 3 أشهر قبل