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Tardigrades: Adorable Extremophiles

24303 ratings | 1178557 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 (4462)
inuyasha (4 days ago)
Buu's final form
Donna Brooks (15 days ago)
You look really good with the mustache and goatee, Hank!! You should consider growing them out again.
All Science (20 days ago)
Watch more about tardigrade on my channel ☺☺☺☺☺☺☺
Not Sure (1 month ago)
*Freeza!*
Anne Cruz (1 month ago)
They are NOT Extremophiles!
Sanjay Sanu (1 month ago)
Hey can u kill one tardigrade....
Marybeth Langendorf (1 month ago)
They are so cute!
93lozfan (1 month ago)
absentmindedly paused at 0:53. Hank i'm uncomfortable
Angelika Hemker (1 month 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 (1 month ago)
are you related to john green in crash course history
https://en.wikipedia.org/wiki/Green_brothers
yes
Donkerito Gaming (2 months ago)
Tardigrades aren’t extremophiles.
Cristina K (2 months ago)
I thought of a tardigrade in space lol
TheWild Pikmin (2 months ago)
Tardigrades are most definitely not godmode builds. They prepares for things that will never happen.
Reginald Finley (2 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 (2 months ago)
Cool beard. I like the new look. I think i'll grow a beard same as yours. 😁😁
lord zilla (2 months ago)
.
Kristi Marie (2 months ago)
This episode didn't say anything about how Tardigrades are key to navigating the Mycelial spore network. Thumbs down!
Ethan McDonald (2 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 (3 months ago)
how do they protect their dna and there telemers?
Zac M. (3 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 (3 months ago)
It's most likely they came from space in the first place and ended up here
TrickShotKoopa2007 (3 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 (3 months ago)
Mirror Universe Hank.
RAJAT Sh (3 months ago)
Defender of the multiverse
Pokie Is Missing (3 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 (3 months ago)
He's actually kind of cute.
James Erickson (4 months ago)
Great! Now when the Tardigrades take over, we'll be the ones being experimented upon. :(
Tyler D'Arcy (4 months ago)
tardigrades for president
Kekkley (4 months ago)
They aren't even that strong, they get eaten all the time.
?? ?? (4 months ago)
What if tardigrades are secretly made from the illuminati to distract us from there master plan?
Please use Celsius scale🙏
derBaum Gaming (5 months ago)
I think the sun is a little bit more inhospitable than orbit around the earth
Whovian_ Gal (5 months ago)
How dare you use tardis clickbait
Justin Van Curan (5 months ago)
TARDIS
Annabeth 1052 (6 months ago)
*sees tardis on thimbnail**clicks*
Ray (6 months ago)
retardigrade
Chandler Short (6 months ago)
Makes a Nokia look like it's the most fragile object ever
A Tr (6 months ago)
Anyone else curious if tardigrades could survive a nuke?
Windex (6 months ago)
And thanks to the thumbnail, whovians came.
PC Principal (6 months ago)
What if we increase the size of a tardigrate and shoot them ?
Lana G (7 months ago)
Tardigrades are so ugly that they're actually cute.
ssooo if you do the experiment again, is it Re-Tardis?
Seb S (7 months ago)
they even survived sulfiric acid and a Nuke
Ausumn / TrueAC (7 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 (7 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 (7 months ago)
3:01 sperm everywhere
Impartial Shift (8 months ago)
Tardigrades...the Nokia of organic creatures
Septyr Caleb (8 months 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 (8 months 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 (8 months ago)
there's a bacteria that can survive up to 10.000 the lethal dose of radiation
noah robbins (8 months ago)
Tardigrades for Mars 2k18!!!!!!
van ti Huynh (8 months ago)
need to finish speech
Mike Pierson (8 months ago)
Hank seems a little buzzed that might explain the beard
Neha S (8 months ago)
Tardigrades in Space sounds like the name of a cartoon tv show 😂
Sea Cucumber (9 months ago)
sucking water off
tangopup10 (10 months ago)
Chuck Norris can keep a tardigrade dead...
Richard Feng (10 months ago)
Tardigrade 1: let's play "throw ourselves into the sun!" Tardigrade2: Okay!!! (in the sun) Tardigrade1: hehe, that tickles
Clarence A. P. (11 months ago)
Tardigrades - tardis?
Eric Pham (11 months ago)
What if... one of the Tardigrade(s) is actually the tardis?
Justin Van Curan (5 months ago)
but TARDIS are grown on a planet in another universe which was sent there Millions of years before earth was possible
Skylee Estby (11 months ago)
Lol nice beard hank
Succubus Lover (11 months ago)
chuck norris vs tardigrade
Nallo Ruales (11 months ago)
that's impressive! And you are cute :)
rwcasals (11 months ago)
Hank, you okay, buddy?
Chromosome Extract (11 months ago)
"Tar disgraces in Space" sounds like a bad scuff movie...
Gabriel Valeriolete (11 months ago)
I don't think space is the most inospitable enviroment, a quasar or something like this would probably be worse kkkk
Gabriel Valeriolete (11 months 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 :]
TheGamer'sMelody (1 year ago)
Hank reminds me of Austin form Shoddycast...er...GameTheory because he moved there.
Narine Ramdihall (1 year ago)
Now I get why Spongebob and Patrick are so scared of Sea Bears. Not to mention why Squidward was so convinced that they don't exist.
Hard to make sense of someone using farenheit... can a science channel please use SI, or at least Celsius so the modern world knows whether the temperature you're saying is hot or cold.
Michael Bauers (1 year ago)
Did you know google can quickly translate C to F, and countless other conversions? Type into google 300 F to C
Ken Hayashi (1 year ago)
I'd thought I saw TARDIS...-_-"
Silent Pixel (1 year ago)
NASA, where animal cruelty is an exception. Lol
john william (1 year ago)
Human Extreme a philes. Lights, Camera, Action.
The Primal Earth (1 year ago)
1:00 the just shrivle up and die.... for a while...."
ejstras (1 year ago)
thumbs down since they aren't extremophiles and this is false information
Michael Bauers (1 year ago)
Well, there are some people who agree with your statement. And I get why. They live in pretty normal conditions. But they can live in harsher conditions I believe, so the label, while wrong, makes a kind of sense
ejstras (1 year ago)
they are not extremophiles
Livia Robinson (1 year ago)
You know your mums a biology teacher if the thing you pictured was a microbe on the side of an active volcano.
King Tardigrade (1 year ago)
im the king tardigrade
Arin Jäger (1 year ago)
"they're what scientists call extremophiles" except they're not, not really, anyway
Frederic Schlueter (1 year ago)
All I am wondering ist, if I eat one of those, which I probably have many times, will they survive or die? So is in my poo tardis? or do I have tardi poos?
Arin Jäger (1 year ago)
they could possibly "survive" - for a while... they could go through your digestive system unharmed, even
Cuttle Fish (1 year ago)
What I do not get is why it would evolve that way, sure survivability, but being able to withstand such extremes in evolutionary terms generlly means that's what it needed, at some point some time. I get being resitant to things but they're just pretty much immune to everything but the extreme which we have to go extreme lenghts for. Unless they always existed I guess, and adapted to every extreme apocolyps, like when the world was on fire from being completly covered in methane gas, all the ice ages, so on ...
BobRooney (1 year ago)
interesting terra genesis hypothesis but i dont see how a parasite would be able to create life.
Benjamin Chance (1 year ago)
they aren't parasites
ann reyes (1 year ago)
please talk about black holes. please! please! please!. thank you very much. ☺☺☺
Rainbow Melody (1 year ago)
How does one become the toughest animal in earth? By not giving a single fuck.

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