The Deadliest Being on Planet Earth - The Bacteriophage

  • Published on May 13, 2018
  • A war has been raging for billions of years, killing trillions every single day, while we don’t even notice. This war involves the single deadliest being on our planet: The Bacteriophage.
    Created with scientific advice and editing by James Gurney.
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    The Deadliest Being on Planet Earth - The Bacteriophage

Comments • 30 942

  • Kurzgesagt – In a Nutshell
    Kurzgesagt – In a Nutshell  8 months ago +7407

    You like our art and want to put it on your wall? Look no further:

    • Bobra Bob
      Bobra Bob 2 days ago

      Interesting, this was just on quirks and quarks on CBC radio.

      GAMINGOV 3 days ago


    • Night King
      Night King 6 days ago +1

      The problem is that a phage is highly selective which means it will kill some bacteria while not other bacteria and they could kiĺl good ones as well and leave the bad bacteria. So I think more search is needed

    • Thomas Wilson
      Thomas Wilson 8 days ago

      Kurzgesagt - In a Nutshell hi

    • Destroyer 10000
      Destroyer 10000 13 days ago

      Kurzgesagt - In a Nutshell 2

  • Kaizen Archival Foundation

    Can I kill it?

  • Cecelia Denson
    Cecelia Denson Hour ago

    you know when you watch something but regret it because you are then dirty minded?

  • AiNoMijo XD
    AiNoMijo XD Hour ago

    Am i a warzone or a Dead body Cloning Myself each second.

  • SunSet Crime
    SunSet Crime Hour ago

    This is why science is my favorite subject

  • Danforth Paleontologist
    Danforth Paleontologist 3 hours ago +1

    Phages are definitely cool.

  • Simone Beralda Tavares

    o wow this went viral

  • Bippy
    Bippy 4 hours ago +1

    What if phages start targeting humans :(

  • Jesse Tomaskovic
    Jesse Tomaskovic 6 hours ago

    What if bacteriophages evolved to attack humans?

    Then it's US that are in the catch-22.

  • glitch kingdom
    glitch kingdom 6 hours ago

    I love this channel thank you for the arabic translation😘😘

  • RatKing1981
    RatKing1981 7 hours ago

    We should make a genetically engineered phage

  • sridhar suravarapu
    sridhar suravarapu 7 hours ago

    Listen very closely to when the superbug dies

  • Gabriel Silva
    Gabriel Silva 7 hours ago

    The problem is, we humans, we take more and more antibiotics for less causes (says on the video), but antibiotics don't kill 100 % of all bacteria. And the ones that survive, they learn and make counter ways to resist antibiotics. Like an evolution. We should not take antibiotics unless gets worse. The best way to survive even more stronger bacteria infections is to let the immune system do its work. So it can learn about and make more powerful (weapons). If the infection doesn't stop in maybe 2 days, then yes you should take antibiotics to give ur immune system a (hand) to defeat the infections. This is just my opinion.

  • .;Pokemon Joeha;.
    .;Pokemon Joeha;. 8 hours ago


  • Firman N
    Firman N 13 hours ago

    "The number second deadliest killer....human..."

  • Roshaan Boss
    Roshaan Boss 16 hours ago

    Won't the phages evolve against us i hope they don't because that will be bad.

  • fridgeprotector
    fridgeprotector 19 hours ago

    How do we remove them from our body tho?

  • AnimeFlameKing TV
    AnimeFlameKing TV 22 hours ago +1

    That might explain my immunity to litteraly most bacteria

  • Stephen Bouthot
    Stephen Bouthot Day ago

    Good viruses. Now I've seen everything!

    CRY BABY Day ago

    5:12 Listen carefully. You can hear something. XXXXXXXXXXD

  • julliu cesar
    julliu cesar Day ago

    bacteriophage the new super drug

  • ZePren 64 #NoMasMaltratoAnimal

    Can we do genetic engineering for making the phages kill viruses?

  • Spartan War118
    Spartan War118 Day ago

    Okay easy on the visualization there
    I'm trying not to vomit out MY insides here
    Also would just isolating an environment from bacteria entirely keep someone alive?
    Would we be able to escape them in the vacuum of space?
    Because although they're small and everywhere, on Earth
    That doesn't mean they can just appear anywhere
    Besides that
    It's never a bad thing to be a little Mysophobic
    Infact maybe that'll be my new years resolution

  • Dominik Cyran
    Dominik Cyran Day ago


  • Klassisk
    Klassisk Day ago

    this made me worried about getting a cut on my hand lol

  • Elmer Osorto
    Elmer Osorto Day ago

    Very interesting!!

  • Szymon P
    Szymon P Day ago +1

    4:46 Who knows "Worms"?

  • Master Chief
    Master Chief Day ago

    *Big chungus*

  • Annoying Bunny
    Annoying Bunny Day ago

    There's just a lil' problem...Our digestive system has got an internal fora, made up of eukaryotic cells and if bacteriophages targets them, wouldn't it destroy our intestinal flora?

  • Anders K
    Anders K Day ago


  • Normal_StikBot
    Normal_StikBot 2 days ago

    4:28 i love that part.

  • Eating food is wow
    Eating food is wow 2 days ago

    aww i have little pet bacteria killers on me

  • Jack Krieger
    Jack Krieger 2 days ago

    The problem with medicines and new cures is the monopoly companies that have sunk their teeth deep into politics and the health market .
    I believe that health system should be seen as a market but should be controlled half by private sector amd half by the government.

  • John Oats
    John Oats 2 days ago

    It's 3 am and I'm scared

  • RandomRules
    RandomRules 2 days ago

    got it, so phages are nazis

  • Joshua Cisneros
    Joshua Cisneros 2 days ago

    Their heads look like the triforce.

  • Harrison Young
    Harrison Young 2 days ago +1

    4:43 is that a worms reference 😅

  • Berriestorm
    Berriestorm 2 days ago

    But if The bactheriofage can evolve, that doesn't mean that The bacteriofaghes can evolve and kil humans too?

    ARYAN DHANAWADE 2 days ago

    They sound like they will evolve into anything to kill bacteria... But what if one day they said we need a bigger fish to fry...

  • Poisonedskull 103
    Poisonedskull 103 2 days ago

    Super bacteria: (gets into the human) TIME TO DIE
    Human: (almost dying) ohhhhh sheeeeeet
    Other human: (injects phage into him)
    Human: WHAT!!!! WHAT ARE YOU-
    Phage: (kills bacteria)
    Human: ...
    Phage: (looking at human cells) HEWO
    Human cell: sup (fist bumps phage)
    Human: well then.....

  • Mr. Shiny Pikachu
    Mr. Shiny Pikachu 2 days ago

    I looked at the thumbnail and thought I saw a Gem Injector from Steven Universe. Weird.

  • Alexander Arnold
    Alexander Arnold 2 days ago

    These are like microphages and microbiome in the gut! Yuckers🌰!

  • Linda Nguyen
    Linda Nguyen 2 days ago

    Who are you

  • K00lAid Plays
    K00lAid Plays 2 days ago

    World war 3

  • renato mu
    renato mu 2 days ago


  • The Unknown Critter
    The Unknown Critter 3 days ago

    Fuck fungus. I'm allergic to penicillin and every other cillin. I'm screwed...

  • Uniformatom
    Uniformatom 3 days ago +1

    What if it evolves and finds a way to destroy human cells?

  • The Cringe World
    The Cringe World 3 days ago +2

    i don't know ..this bacteriophage makes me feel exposed and violated's like a really good villan

    • Papaya
      Papaya 11 hours ago

      The Cringe World
      A real life anti-hero!

  • thoko skene
    thoko skene 3 days ago

    I'm paranoid now 😕

  • Anthony Morford
    Anthony Morford 3 days ago

    We should probably run computer simulations before committing to this 100%

  • Kridam The shape shifter

    Anti phages

  • TNTender 666
    TNTender 666 3 days ago +2

    Is it just me or does the phage look like the kindergarten drills from steven universe

  • M Z
    M Z 3 days ago +1

    The virus and bacteria can't be a friend right?

  • faiz Yoda
    faiz Yoda 3 days ago +1

    Don’t press read more

    Now your are cursed for all of 2019,
    Please press the like button to undo the curse

  • Agente RED
    Agente RED 3 days ago

    No pos que buen

  • the little veteran
    the little veteran 3 days ago

    What if the phages evolve to be able to hurt us?

  • Oir Basilio
    Oir Basilio 3 days ago

    do you mean the phage is not alive do you mean its dead?

  • Jason Yang
    Jason Yang 4 days ago

    這中文字幕翻譯得太棒了 感謝作者

  • MuffledCornet
    MuffledCornet 4 days ago

    If I roll it, will I actually be able to use them in DnD

  • Yevgen 4000
    Yevgen 4000 4 days ago


  • Bacteria
    Bacteria 4 days ago

    *where's the dislike button?*

  • fluffy boy
    fluffy boy 4 days ago

    but couldn't the bacteriophobes evolve to harm us?

  • TheBloxer
    TheBloxer 4 days ago

    *He is Jesus in desguise.*

  • TheBloxer
    TheBloxer 4 days ago

    Then they realize we are using them and they get revenge and kill us

  • Kitten2Cat
    Kitten2Cat 4 days ago

    Where do you get your sources?

  • bobasaur squared
    bobasaur squared 4 days ago

    They actually aren't viruses
    -Alice Agnew

  • Mister X
    Mister X 4 days ago

    That whould be like anti vaxxers all over again

  • MishaMae82 ApparentApostate

    I was very interested in this until I saw the Bill and Melinda Gates tid bit at the end...kinda hard to get behind when Bill blatenly says in a Ted Talk we must decrease the population by 90%. Maybe these phages will work faster than that of antibiotics and vaccines from years past.

  • Dawid Szamreta
    Dawid Szamreta 4 days ago

    So the deadliest virus is our protector and age by age it evolves and our organism is much stronger, I think in future human will recieve one more chromosome making him post-human

  • Gaming Madness
    Gaming Madness 4 days ago

    Who is the man who got the phages? For a school project

  • Random Youtuber
    Random Youtuber 4 days ago


  • FuturisticSp
    FuturisticSp 4 days ago

    If we use 2 much phages wont they evolve to maybe attack our cells which would be the most common or smth

  • Dmirtru Gotfrid
    Dmirtru Gotfrid 4 days ago +1

    скиньте ссылку на русскую версию

  • Jeyhun Anaroghlu
    Jeyhun Anaroghlu 4 days ago

    Does this mean aids can cure the cold?

  • Manjot singh
    Manjot singh 4 days ago

    If these two species partnership with each other then together they can end everyone welcome to the hell

  • -Crystal_ Clear-
    -Crystal_ Clear- 4 days ago

    Holy crap it's a gem drill....

  • 1un4cy
    1un4cy 4 days ago

    So we basically just flip flop between phages and antibiotics every couple of decades
    or would phages be the new permanent antibiotic, and medicine would just be plan Z

  • Ze Yang Lim
    Ze Yang Lim 4 days ago

    Bacteria says shit

  • Mei Newman
    Mei Newman 4 days ago

    y'all I have a cold while watching this and am soo scared!!

  • alfa alfa
    alfa alfa 4 days ago

    The enemy is pharmaceutical

  • Mono
    Mono 4 days ago

    But what if

    s evolve into killing us?

    • Mono
      Mono 4 days ago

      +AL Hmmm... interesting, Bacteriophages, indeed is like us humans, I think if it were to evolve, I believe it will take a long time for it to change. I guess we won't be able to see it alter in our generation...

    • AL
      AL 4 days ago

      If it did, why didn't it do it now? They're specialized. They don't affect eukaryotic cells.

  • otaku g
    otaku g 4 days ago

    Please phage kill the acne causing bacteria

  • mozart
    mozart 4 days ago

    the battle of survival amazes me

  • The Irish Polar Bear

    Damn that’s deep there’s a war in our fucking bodies going as I type this comment holy shit

  • The Rat
    The Rat 4 days ago

    This is honestly horrific

    But cool

  • Pocket Knife
    Pocket Knife 5 days ago

    so they're basically chestbursters?

  • Ash Greninja
    Ash Greninja 5 days ago

    If the microphage is good at killing, can it kill Ebola?

  • B Taylor
    B Taylor 5 days ago

    I hope the phages don't evolved to use human cells for reproduction.

  • Ahsan Hussain
    Ahsan Hussain 5 days ago

    More like the bacteriofag

  • suprtroopr1028
    suprtroopr1028 5 days ago

    The second deadliest organism on the planet utilizing the deadliest to our advantage. Doesn't that effectively make us the deadliest?

  • Soláyn Croes Biggest Hater

    It looks like it’s from Steven universe in the kindergarten the giant robots that made them looks exactly like that

  • Crappy Videos
    Crappy Videos 5 days ago +1

    a phage kills bacterias by shoving its dick inside a bacteria

  • patrick star gaming
    patrick star gaming 5 days ago

    Yhe sure but you said that the phages are evolving too sothey evolve and evolve until they might kil us

    • AL
      AL 4 days ago

      1. They're specialized. 2. Phages do not affect eukaryotic cells.

  • Don Lucchese
    Don Lucchese 5 days ago

    Thanks to the Eastern block isolation. They created that concept in medicine. The Soviets did not used antibiotics but instead bacteriophages. I guess the West had spent all it's ideas and found the solution on the East.

  • Lucas Bailey-Thomas
    Lucas Bailey-Thomas 5 days ago

    2:07 ... A castle falls from within its walls!

  • R0B0BRO
    R0B0BRO 5 days ago

    But couldn't phages evolve to attack human cells?

    • AL
      AL 4 days ago


  • MAES ‘
    MAES ‘ 5 days ago

    If I can give this video more than one like I would, thank you !

  • lyhthegreat
    lyhthegreat 5 days ago

    i kinda feel bad for the bacterias now...

  • Lord Icebear
    Lord Icebear 5 days ago

    when phages are gonna be completly normal cure: anti phagers come in

  • Rebeca Cann
    Rebeca Cann 5 days ago

    The sound tho 5:12