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


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

    • 4:41 are super smash bros,right?

    • I wonder why we didnt start using phages to fight off bacteria to begin with

    • Kurzgesagt


    • Kurzgesagt - In a Nutshell but can it attack immune cells?

  • Won't the virus evolve and attack human cells after some time then?

  • that's a weight lifted off my shoulders. One doomsday scenario resolved

  • Where do I sign up

  • I really want to be a patreon but I can't because I'm not that rich( I'm poor) so I'm really sorry but I did subscribe.

  • Also sind phages das beste virus...

  • Its like phages are Our friends

  • It gets in your head, like a virus. I have heard this statement so many times from those dumb slenderman ads. My brain is decaying.

  • 5:56 Alcoholic handjob

  • Awosome

  • The enemy of my enemy is my froed

  • Okay this may seem like an unscientific conclusion.. Buy what if the Phages just evolve to use any human cells (say RBCs) instead of bacteria's..then along with the availability of lot of energy they'll evolve even faster and maybe become a threat to humanity??

  • For start I am an atheist and I understand pretty how organisms evolve but how in Darwin's beard these things come to existence? That is serious question, if you tell me aliens I would not be suprised at all.

  • Wilhelm scream 5:11

  • Wow I like this idea


  • i thought this would be scary but now...i would like to have a phage as a pet :D


  • Phages are the best

  • What if there is a new bacteria that is immune to antibiotics but has no phage

  • I thought this was gonna be another one of those 'Short answer; you'd die' videos but I was very wrong!

  • why tf do i want to cry?

  • Viruses.. Brought to you by Bill Gates.

  • This video needs to go global across the world!

  • How do we even capture/find these phages?

  • They look like those alien robots from Chicken Little

  • Bacteria: IM EVOLVING YOU CANT STOP ME Antibiotics: Well. were useless now Bacteriophage: Omioa mo shinderu

  • Oh wow

  • 0:57 well thanks for telling me

  • what if the phages evolve to take us on?

  • Gotta Blast

  • Hell, Kurzgesagt makes this look epic...

  • Georgians (country) had one of the first effectively using phage's, but monsanto byer and joog4y agenda wants to depopulate us all, but a few of them.

  • phages ftw!!!! thanks!

  • so where will the phage go after they killed the deadly bacterias? stay in our body forever? if they do stay in our body, we will basically be immune to these type of bacterias? and how will the phage survives in our body that long? will they start to kill us?


  • no one is talking about the most important question here what is the phages evolve to kill human cells

  • WAIT A MINUTE!, isn't this how the Zombie Apocalypse started in that movie "I Am Legend"?..hmmm

  • So basically we let phages live in our bodies and they kill bacteria. Sounds like a good deal to me 👍

  • Who else started slapping them selves when he said that phages our everywhere and on us

  • Antibiotics are like plastic. When we discovered them, it felt like as if we'd found the cure to death itself and we started expanding its range of applications throughout our lifestyle. But no one realised that everything has a price...

  • Bacteeriophage is the hero

  • How does bacteriophage exist?

  • pick yure fighter

  • I really *love* the animation!!!

  • I wonder what got you to make a video about microscopic terminators

  • I need to make a robot like this that steals electricity and has self replication.

  • Who would win: A super-powered, lethal bacteria that is resistant to pretty much every type of antibiotic One phagy boi

  • Local pharmacies filled with edible phages.

  • So bacteriophages are medicine?

  • i don't want to live anymore

  • Now I just want a stand for my d20 that looks like a phage.

  • FDA doesn't approve it so Pharmas can cash in from antibiotics. I now love phages. 😍

  • i thought that was zika

  • But if all the bacteria is killed eventually by the Bacteriophage, wouldn’t that mean that the phage would either disappear or evolve to consume our good cells/bacterias to survive? There really isn’t a shortcut...

  • It looks like something from Steven univerce

  • 4:42 Hey, look! A reference to Worms!

  • But... Can they save me from ligma?

  • My favorite microbe.

  • 4:33 Problem? sry.

  • Anyone seen Steven Universe and see the connection? Hint: Gem injectors in kindergartens!

  • So antibiotics are like the holy grenade. I see I see.

  • is this real because I'm million% scared

  • I miss Worms/2 game.. Damn..

  • bro why tf do you have to freak me out with that 2050 superbug shit

  • They are useful in killing bacterium, so stopping disease

  • Is the Bill and Melinda Foundation that support you called Mojaloop now? Can you make the video about Mojaloop helping poverty with crypto? thanks

  • But what if the pages become interested in killing human cells? As in become specialised to do so?

  • 2:15 they are producing pacmans


  • 0:58 They had to say it.

  • The thing in photo is the gem destroyer from Steven universe

  • Phage's head looks like Phantom Ruby

  • Phages being used against infectious bacteria? I do suppose they are at least One (1) Doctor, Good chap!

  • Steven Universe Kindergarten?

  • so people who take antibiotic for nothing can spread super bacteria,i say kill them, problem solved

  • Главное - случайнейшим образом не создать фага, который будет выпиливать все бактерии.

  • 0:40 - 20 faces Английский - очень забавный язык

  • so... lets them fight?

  • 2nd Deadliest.. how much you wana bet

  • 2:17 ooh fortune Cookies

  • when he said there on you right i was looking all over me lol my question is do they kill bedbugs

  • 2.4k bacteria dislike this

  • Anyone notice that the Phages look alot like The Tholians from Star Trek? They were depicted again in the Enterprise episode, "In A Mirror Darkly" looking very much like phages with the faceted head and crustacean like legs!

  • 4:22 thats reference

  • What happens when the phages evolve to kill human cells?

  • Alot of terrible things to come in our life time

  • But won't the phages quickly evolve to adapt to human cells too?

  • E

  • I love these videos and how they help me stay aware of humanity’s scientific progression. Keep it up!

  • But what happens if the phages are able to evolve to kill us the plot thickens

  • This is a pretty cool vid

  • 1950s: America:We invented antibiotics USSR:let's do some experiment with bacteriophages

  • That Wilhelm Scream though

  • Can phages evolve to be enemies against humans, and can bacteria evolve to have resistance to both phages and antibiotics?

  • Love this animation

  • What if the phages evolve to kill the evolved bacteria but then kill the human cells too?

  • Putting the deadliest being on Earth in my body... SEEMS LIKE A GOOD!

  • My question to you is this: how do we know they look like this?

  • Beautiful.