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Tardigrades: Adorable Extremophiles

24506 ratings | 1210313 views
Hank explains why NASA and the European Space Agency are in love with tardigrades and how these extremophiles are helping us study the panspermia hypothesis. Follow SciShow on Twitter! http://www.twitter.com/scishow Like SciShow on Facebook! http://www.facebook.com/scishow
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Text Comments (4019)
ceyb97 (14 days ago)
this was so hilarious! laughed while learning. wow!
pdblade99 (16 days ago)
Maybe we should teach them to eat cancer cells.
John Thomson (18 days ago)
I have a Planet of the Tardigrades t-shirt... just sayin'...
BG ELITE!!! (23 days ago)
Water bear
hyde1885 (26 days ago)
"The Tardigrades were like, 'What's up?'" LOL!
Toughen Up, Fluffy (1 month ago)
Retardigrade: needs to go back to tardigrade school.
Iangamer Tv12 (1 month ago)
That panspermia from tardigrades hypothesis is crap. Doesn't explain prokaryotes, archeae, endocymbiosis, etc...
Miguel Lopez (3 months ago)
I have pet tardagrades
matthew houlihan (3 months ago)
I can imagine scientists singing "I wanna be like you" while staring at tardigrades
Elena O (3 months ago)
I pictured a honey badger fighting a pride of machete weailding loins
revoir139 (3 months ago)
Whovian's clickbait
Edgbarra (3 months ago)
OK they can live in extreme conditions, but in normal circumstances almost everything (insects, plants, other water bears) kill them
ElyK (3 months ago)
*but will it blend?*
Universe_Cat3 (3 months ago)
Except they get killed in millions daily because they only have defenses that work on nuclear weapons. They can't even thrive in these conditions, just withstand it for a longer time than other animals
GPC™ (3 months ago)
TARDIS blog is good if you are interest in finding escorts in shitty countries.
GPC™ (3 months ago)
No, they are not extremophiles. The term is reserved for those who have their habitat in extreme environments - not "just" support extreme conditions. Get it?
frankie can animate (3 months ago)
Just send tardigrades to mars of titan
Damien Combs (3 months ago)
"They don't give a crap about where they live" lmao
inuyasha (4 months ago)
Buu's final form
Donna Brooks (4 months ago)
You look really good with the mustache and goatee, Hank!! You should consider growing them out again.
All Science (4 months ago)
Watch more about tardigrade on my channel ☺☺☺☺☺☺☺
Not Sure (5 months ago)
Anne Cruz (5 months ago)
They are NOT Extremophiles!
Sanjay Sanu (5 months ago)
Hey can u kill one tardigrade....
Marybeth Langendorf (5 months ago)
They are so cute!
93lozfan (5 months ago)
absentmindedly paused at 0:53. Hank i'm uncomfortable
Angelika Hemker (6 months ago)
I think it would be highly that tardigrades can seed another planet with life because eventually they will have to eat, and if what they eat here on earth is moss than this is something they have co-evolved with and will not find elsewhere. What do you say?
Samuel Pyle (6 months ago)
are you related to john green in crash course history
Donkerito Gaming (6 months ago)
Tardigrades aren’t extremophiles.
Cristina K (6 months ago)
I thought of a tardigrade in space lol
TheWild Pikmin (6 months ago)
Tardigrades are most definitely not godmode builds. They prepares for things that will never happen.
Reginald Finley (6 months ago)
Tardigrades are not extremophiles. They do not love extreme environments. They can tolerate extremes but they do not thrive in them. True extremophiles thrive in harsh environments.
Manish Joshi (6 months ago)
Cool beard. I like the new look. I think i'll grow a beard same as yours. 😁😁
the kaijuguy (6 months ago)
Kristi Marie (6 months ago)
This episode didn't say anything about how Tardigrades are key to navigating the Mycelial spore network. Thumbs down!
Ethan McDonald (7 months ago)
Tardigrades aren't extremophiles. They can't survive in harsh environments. They can persist. There's a difference. If you can survive, you could live there all your life, get food, and be fine. If you can persist, you'll still die, it'll just take a long time. And a tardigrade will still die in space, it'll just take a long time. Also, tardigrades are kinda stupid. Yeah, they can survive armaggedon. But they can't survive the most basic things that they'd actually have to deal with on Earth, like... a worm. They can survive exotic things that are impressive, but they can't survive simple things that would actually be useful. Like how a honey badger can survive a bunch of bumble bee stings.
Alpha Omega (7 months ago)
how do they protect their dna and there telemers?
Zac M. (7 months ago)
So we've sent some into space.. What if some of them were just left to drift and that's how the massive one in ST: Discovery came to be.. I mean they actually mentioned Elon Musk in it so this could well be the explanation for the big guy
4c00h (7 months ago)
It's most likely they came from space in the first place and ended up here
TrickShotKoopa2007 (7 months ago)
0:50 actually wrong they can not survive in harsh environments. Sure they can chill there but if they are not in the area they need to be they will eventually die, so no. They are not Extremophiles.
WD (7 months ago)
Mirror Universe Hank.
RAJAT Sh (7 months ago)
Defender of the multiverse
Pokie Is Missing (7 months ago)
A random person: TARDIS stands for Time and Relative Dimension In Space Me, an intellectual: TARDIS stands for Tardigrades in Space
Brian Cartwright (7 months ago)
He's actually kind of cute.
James Erickson (8 months ago)
Great! Now when the Tardigrades take over, we'll be the ones being experimented upon. :(
Tyler D'Arcy (8 months ago)
tardigrades for president
Kekkley (8 months ago)
They aren't even that strong, they get eaten all the time.
?? ?? (8 months ago)
What if tardigrades are secretly made from the illuminati to distract us from there master plan?
Please use Celsius scale🙏
Merasmus TheWizard (9 months ago)
I think the sun is a little bit more inhospitable than orbit around the earth
Whovian_ Gal (9 months ago)
How dare you use tardis clickbait
Annabeth 1052 (10 months ago)
*sees tardis on thimbnail**clicks*
Ray (10 months ago)
Chandler Short (10 months ago)
Makes a Nokia look like it's the most fragile object ever
A Tr (10 months ago)
Anyone else curious if tardigrades could survive a nuke?
ham and jam (10 months ago)
And thanks to the thumbnail, whovians came.
PC Principal (10 months ago)
What if we increase the size of a tardigrate and shoot them ?
Lana G (11 months ago)
Tardigrades are so ugly that they're actually cute.
ssooo if you do the experiment again, is it Re-Tardis?
Seb S (11 months ago)
they even survived sulfiric acid and a Nuke
Ausumn / TrueAC (11 months ago)
Aren’t we extremophiles because we don’t care where we live because you know pollution and stuff.Hehe.Bye..
Jasmine Anne Greenfield (11 months ago)
I wonder if the Tardigrades can survive gasses, i mean posinous gasses, it would be cool then they can go the gas gaints, also what if Panspermia Hypothsis has happened and they happened apon our planet on the same time the astrode wiped out the dinosaurs just makes you think some time
Ike Moon (11 months ago)
3:01 sperm everywhere
Impartial Shift (1 year ago)
Tardigrades...the Nokia of organic creatures
Septyr Caleb (1 year ago)
Waterbears are low-tier garbage. If you want a good survivalist class, I suggest the Rat, the Roach, or—if you're feeling really extreme—you could try out an Archaean. Also, you even admit "there's no way that would be useful on earth!" Yes, you're right. They're resistant to everything BUT what would kill them. Yes, they can survive for a long time in space. But they WILL die. It just takes a long time. They're killed by the millions just on accident from snails, slugs, crabs, etc. Not to mention their cannibalistic. Source: https://www.youtube.com/watch?v=aMUvNWuSq6I
Jens Pettersen (1 year ago)
"While tardigrades can survive in extreme environments, they are *not considered extremophiles* because they are not adapted to live in these conditions." https://serc.carleton.edu/microbelife/topics/tardigrade/index.html
ByMaatdraG (1 year ago)
there's a bacteria that can survive up to 10.000 the lethal dose of radiation
noah robbins (1 year ago)
Tardigrades for Mars 2k18!!!!!!
van ti Huynh (1 year ago)
need to finish speech
Mike Pierson (1 year ago)
Hank seems a little buzzed that might explain the beard
Neha S (1 year ago)
Tardigrades in Space sounds like the name of a cartoon tv show 😂
Sea Cucumber (1 year ago)
sucking water off
tangopup10 (1 year ago)
Chuck Norris can keep a tardigrade dead...
Richard Feng (1 year ago)
Tardigrade 1: let's play "throw ourselves into the sun!" Tardigrade2: Okay!!! (in the sun) Tardigrade1: hehe, that tickles
Clarence A. P. (1 year ago)
Tardigrades - tardis?
Eric Pham (1 year ago)
What if... one of the Tardigrade(s) is actually the tardis?
Skylee Estby (1 year ago)
Lol nice beard hank
Ghostnut (1 year ago)
chuck norris vs tardigrade
Nallo Ruales (1 year ago)
that's impressive! And you are cute :)
RWC (1 year ago)
Hank, you okay, buddy?
Chromosome Extract (1 year ago)
"Tar disgraces in Space" sounds like a bad scuff movie...
Gabriel Valeriolete (1 year ago)
I don't think space is the most inospitable enviroment, a quasar or something like this would probably be worse kkkk
Gabriel Valeriolete (1 year ago)
I doubt tardigrates could survive it, let's send them to the Sun! Take that Tardigrades!
Water Nebula (1 year ago)
Google actually tried to develop a phone with a tiny tardigrade aquarium
fAt NigGer (1 year ago)
3:53 sucking water off
javily6 (1 year ago)
Hey, they just accidentaly put all of their skill points into DEF. Don't laugh at them, it happens to the best of us...
Brooke Leaf-Wright (1 year ago)
So, I'm totally here for the scientific discourse but do you know what else is weird? Seeing Hank with a beard for the first time in forever.
jmac2o2 (1 year ago)
Tardigrade: Hey death fuck you
Esmerlda Vixen (1 year ago)
John you don't have anyone fooled. You think you can hide behind that fancy facial hair.
Silent Ninja (1 year ago)
I bet they originated from space.
Silent Ninja (1 year ago)
This is my new favorite animal
Nat (1 year ago)
not extremophiles,,,
Dave Pogue (1 year ago)
what happens when a waterbear is late for class? it gets a tardy-grade.........
Proj8ct (1 year ago)
I googled tardigrades and a pic of Stalin hugging one popped up 😂 people are something else
Proj8ct (1 year ago)
so if we shoot these things onto mars they will successfully live and reproduce?
Bio Tech (1 year ago)
Why haven't you published this: https://www.researchgate.net/publication/303059678_Investigation_of_the_Interplanetary_Transfer_of_Microbes_in_the_Tanpopo_Mission_at_the_Exposed_Facility_of_the_International_Space_Station
protonjinx (1 year ago)
70s, 80s - Carl Sagan the sciency guy 90s - Bill Nye the science guy 10s - Hank Green the science guy
wcdeich4 (1 year ago)
Thank you for the video of a Tardigrade from under neath - I"ve seen them thru microscopes before, but this is the first time I saw how they could even remotely look like a "bear"
malek jamali (1 year ago)
How do we know they can withstand absolute zero if its impossible to reach absolute zero? this question is probably stupid
Nels (1 year ago)
love this old school ranting chill hank
R Re (1 year ago)
i was preparing my anti sea bear circle sticks and other precautions...but now im preparing for a member to my new home :]

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