Looking at Tardigrade Sperm and Other Reproducing Swimmers
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- Опубліковано 19 жов 2024
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Not all hypotheses need to be good. In fact, many of them are terrible. It’s just that when you’re trying to understand the world, you might find yourself believing that there are tiny humans living inside the heads of sperm, and we're here to tell you, that's not how it works.
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Can you guys do a video about the division of chloroplast and mitochondria?
What are the little cluster/rock shaped things floating around all over the insides of their bodies? I feel like I misunderstood something lol
I was going to say not only is the homunculus partially accurate due to genetic code but have you ever seen a child's skull? We are born with all our child and adult teeth it's creepy looking
I feel like we're getting trolled with the constant popups of "Gonads filled with sperm" text
Nutsack
I agree!
Yeah, for them claiming they are not obsessed with this, the amount of times they said the word sperm unnecessary tells a different sperm sperm story sperm.
Ligma gonads.
Microscopic tea bagging.
05:00 I was so surprise to see the sperm cells while recording this, it was truly a mindblowing moment!
-James
That sounds like an awesome microscope session!
I really didn't expect to be shown that you can see the tardigrade sperm's tails (flagella). Really cool
You must be the great master of microscopes 😊
*Alexander Klepnev, in a moment of climactic genius:* hmm, I should put this under my microscope
Climatic genius 🤣
And now the whole world is playing a part in he's joyfull strockes of a ginius.
Not the footage you want credit towards you be so visible xD
F O R
S C I E N C E ! !
@@mixiekins SCIENTIFIC CUMMIES
Finally an organism I can relate to
I read that as "orgasm I can relate to"
I think I saw a rare, one-of-a-kind Hankculus partway through the video.
Herman-culus 😂
Ok, I already ordered the Hank pin from Bizarre Beasts, so where's the link to get Hank-munculus socks???
I thought “Hankunculus”
That was prime sock material, make it happen guys!
I never imagined living to this day to see a microscopic bear creature and its sperm.
6:33 I love that dude who went up to the zooaspores and then noped out
I was not expecting to find out yet another weird thing about Pythagoras.
He couldn’t just stop at math
i didnt recognize hank's voice at first because i'm so used to him sound like he's telling me sperm facts from the other side of an auditorium
I swear he is like the David Attenborough of UA-cam science videos
Remember; no matter who we are or where we're from, we're all great swimmers!
Keep in mind that the fastest swimmers release acrosome enzymes and die. The fastest swimmers would never fertilize the egg because it takes quite a bit of acrosome enzymes to get through the zona peullucida (in other words the first 200 sperm or so release the enzymes and die). Also, capacitance takes 6 to 8 hours. So the one that "wins" is not the fast swimmer but rather 1) adequate swimmer 2) lucky 3)good at surviving long enough. So yeah, endurance and luck but not speed.
(I know you are just having fun, but don't worry, so am I)
@CL Melonshark That is an excellent question/point! I feel like way back in my very first biology course at university, the professor said that the egg may have properties that influence which sperm fertilizes the egg (I forget the details). This makes intuitive sense to me considering how cells usually interact with each other (compatible protein receptors). However, later I tried to google more information about this and was unable to locate any info/research supporting this. So I'm definitely open minded to this being the case but I didn't turn up any source specifically saying that (I should try again sometime though, this was quite awhile ago). Fertilization does indeed occur in the fallopian tube, for sure that part is the case.
I mean homosapians are quite bad at swimming compared to other mammals tbh (yes im taking this comment literally and not as a sperm joke because its bloody 7:42am and i work midnights XD)
Genuinely made my laugh a bit
10/10
Ha ha, the homunculus tardigrade "Inception" sequence made me laugh. I really enjoy these videos. Thanks for making them!
Note to self: Remember to delete history after this video.
Ah, yes, tardigrade sprem. That is exactly what was on my mind at 6 am on a Tuesday. How did you know???
Weirdly enough we both had the same thought at the exactly same time a month apart.
@@chiet97 and a year later.. here I am at the same time
@@jrmckim And one month after that so am I.
😂👍
WHAT THE FUCK THAT'S EXACTLY MY CASE TOO
Another great one, but when are you guys going to make a tardigrade pin?! Those would sell so fast. A hydra pin would be awesome too! Cheers
Agreed.
I second that.
Thank-you for a couple of chuckles! Tardigrades are one of my favorite creatures to watch.
Jesus! That homunculus' gaping face looks like some kind of fever dream mutant straight out of an episode of Adventure Time.
"Why, it's Tardigrades *_ALL_*_ the way down_ !!"
I like to think that the Alexander Klepnev is credited because he created the sperm, not necessarily because he filmed it.
Like..?
Came up with the term of sperm
Or like.. I mean he technically does create sperm
@@pokepoke1889 He was the first person to have created a sperm cell.
wow the microscopy is gorgeous in this ep! (i mean, it always is, but these are particularly vivid). After your video on the filters, Hank, looking at videos I'm like I THINK I KNOW HOW JAMES DID THAT BACKGROUND & LIGHTING OF THE CRITTER! :D We cannot wait to get our microscope, and thoroughly enjoy all your updates!
Great video as always, with an amazing history lesson about the times before the Napoleon. Such a profound moment
Damn.. That water bear... Had some fun the night before..
"What are you watching son?"
"Nothing..."
*sPerMz*
This used to be a meditative channel 😄
this intro beat is knocking. i was watching, i mean listening to this on the 170 freeway and the intro beat had my Subie STI rocking. folks had no clue i was bobbing my head to a dude talking about tardigrade skeet.
Please stop watching UA-cam on the highway. Sincerely, the rest of us.
Take a shot every time 'Gonads filled with sperm' is on the screen.
Ordinarily, the music is just a sci-fi-esque mood-setter, but around 0:43 the base hits in a way vaguely reminiscent of "Drop it Like it's Hot" during the mention of the tardigrade's body full of sperm and even after watching a bunch of episodes, I can't stop thinking about how funny this is.
This is a particularly *unique* episode
@@osmosisjones4912 *hmmm* welp human species have certainly derivered compared to neandarthals
Amazing episode! Thank you both for continuing to educate about the microcosmos!
OMG, yet *another* tardigrade video! Just kidding, though I'm sure they raise this wonderful channel's searchability I'll accept it as long as the content is good. :)
Woah, they are like a living Mandelbrot set. It's mind blowing 🤯
The image of the wee person inside the sperm made me crack up and hum a line from a song I heard on Dr Demento ages ago
"Just lookin' for a womb to rent"
Also the idea of everything coming from one's father was a thing well before Pythagoras, I think? But it was a theological construct (...or maybe I mean cultural idea). My memory is awful fuzzy, over two decades after learning about this notion, but apparently it was a whole thing - one didn't just get "the sins of the father" but also all the glories, ambitions, and so forth. And, one could never be greater than one's father, at least in the sense of the traditional belief. So the idea was floating around, one way or another, for a long long time.
We laugh now at the ideas from hundreds of years ago, but you are right, one has to start somewhere!
One of those videos, when you are curious about the comments as much as about the actual content, ;) I wasn't disappointed.
Those are the ones most worth watching :)
Hank's back!
More history related comparisons!!! The line about Napoleon conquering Europe not knowing how babies were really made was almost Zen Koan level of enlightening
Ever just look at a human sperm cell and think "that used to be me" lol
m.ua-cam.com/video/htgOruzCMrg/v-deo.html
Tardigrades have huge gonads relative to body size
Wow I didnt even recognize Hank not talking in his usual high energy voice
This episode is sponsored by Fabulous; an app that helps you form healthy habits that stick....now onto the video topic: sperm.
i love the utter absolute Dunking on those theories that turned out wrong
"This is not an organism... it's an orgasm..." 😳🤦♂️
I'm a white sperm which has become brown and speaks 3 languages fluently. Aren't I wonderful??
Could you do plant tissue cultures in the future? 😅 It would be quite interesting to get content discussing that!
Really fascinating. Just from reading historical texts, I came across the idea of spermism before, but never knew this idea had a specific name. It lends new light to, say, passages in the Bible that refer to women being fertile or "barren", like a field. People of antiquity took this idea literally, with the "seed" being thought of as complete and just needing the proper place to grow.
The way he talks instantly striked me, hello hank😎
Thank you for calling it "The Great Famine"!
I love all Hank's channels❗️
I wonder how Pythagoras would react to what really happens with human reproduction? Would they rebel? Would they accept the important role of the ovum and the uterus etc.?
Why are you calling Pythagoras a group of people lol
It’s common practice among the youngs to use gender neutral terminology. I find that only bigots, pedants, and ESL find issue enough with it.
Damn, I always imagined tardigrades had giant gonads. Just never wanted to see them to verify. Now you made me see it against my will! lol.
Oh wow that 1000x zoom, so cool!
"just...chock full of it" same brother
8:47 My brain got confused for a second and I almost expected to hear "swimming off, to new pockets... of Spacetime"
Very much spoken in a carl sagen-esk inflection
How does this video not already have 1m views?
Though, to be fair, there was an opposition to spermism, called ovism, claimed of course that small versions of humans and animals are inside the female ovum. Generally equally wrong assumption, but maybe just a little bit closer to truth, as all the mitochondria (and plasmids, in the case of the plants) in zygote are from ovum.
@Matthew Morycinski There were dual contribution theories, and even a belief that women had 'seed' too. There were many, many, competing hypotheses back in the day.
Alexander Klepnev: "I love looking at my own spunk under a microscope."
I've always wondered why animals grow old but gametes don't seem to. A living thing can be near the end of its life and still produce a child with the full energy of youth.
Search "telomeres and aging"
The telomeres become smaller as we age.
@@johnchristian7788 What about gametes?
Male gametes do age, but they keep producing new ones from stem cells kind of like how blood cells are made. Female gametes also age, but slowly, which is in essence, why female fertility has an age cap and male fertility doesn't really.
Man this video was nuts
👉😎👉
m.youtube.com/watch?c=htgOruzCMrg
1:41 s e m i n a l f l u i d
I can't help but feel those blobs moving through their bodies as if it was my own body.
I like the small human in sperm idea 😂😂 I'm going with that from now on !
Nice of you to credit the donor
The tardigrade is the cutest creature in the universe of microscopic organisms.
Тихоходка самое милое создание во вселенной микроскопических организмов.
Some dude just 🥜 on the slide and said “here you go, take a look”
What kind of microscope & camera system are you using ? The optics are outstanding !
Next Pizzamas will feature a t-shirt of "Hank Sperm," or is it "Sperm Hank." I guess if it's "Pizza John" It's got to be "Sperm Hank."
1:44
The most fun sample to gather
Kill me
Scientists: you can't see a single cell
Me who can see several billion at a time: well yes but actually no
I love this channel, I really do… but this is an incredibly important question I’m sure many would like to ask but aren’t brave enough to do so..
“Credit: Alexander Klepnev” is that credit for the footage..? Or…. Credit…. For the footage?
4:55 Hank, sorry for the super cheap jokes, but would that mean it's actually "Tardigrades all the way down" ? :-D
Been trying to get some info on this DIC process. Of course these are GREAT videos but my question is this; if one has a DIC ready scope, is there much pre or post work done to get these kind of videos/images or do you get your specimen and go at it?
whoa whoa... 0:57 let me stop you right there. Tardigrades are NOT easy to find! I think I have the cleanest moss on the planet!
How and where did you get the samples?
Patreons.
I believe their samples are gathered in Poland, which is where the microscopes actually are.
The persons IG referenced at the end, is the collector and photographer, my understanding is most are found in pond water, or puddles with occasional foraging to the coast and known locations?
You should read the credits at the top left when it's a video from someone else.
@@maracachucho8701 reading? That would be really hard to do. ;)
James has some explaining to do..
Hank is this the one you recorded after too much coffee? ...makes sense.
Nice video super optics
Spermism might actually come from a very old Indo-European idea that the clan soul was inherited through the father. The mother does influence the soul, yes, but it’s an uneven union. It’s sort of like a seed versus the soil, a plant needs both to grow but an apple seed planted in soil meant for a pumpkin is still going to be an apple. If the mothers clan has good luck that luck will be passed down to her child and likewise if she has poor luck that will negatively affect the luck of her child but said child will always and forever belong to his fathers clan. But it doesn’t effectively conflate biology with metaphysics. You can have someone who’s half one thing and half another but you can’t have half a soul.
I still think they are little tadpoles, an amphibial remnant of our evolutionary past..
early ideas of how reproduction worked were wild. Another theory was that sperm makes period blood congeal into a baby
Crazy how a 55µm creature only lives to explode and create a vast, spectacular universe; You.
I love the channel.
Great video
That tardigrade ata the beginning is me at the end of no nut November
I was going to joke about the tardigrade being "young, dumb, & full of cum".
OMG, FOR A SECOND I FEARED IT WAS A SAMPLE... FROM JAMES! 😨
Wow, that's amazing! Also, if you see this, I AM YOU'RE BIGGEST FAN!!!
Could A Tardigrade Survive Inside A Human ?
I have a guess - if they prepare for the extreme environment of out stomach acid before being ingested, then they could pass through and re-awaken after they're back outside. In a different part of the body they might be able to survive without preparation, but I doubt they'd have the moss and algae they usually feed on (or do they also eat other things? I forgot).
So in shriveled-up-mode, as long as needed, but in 'live mode' probably not. But I'm happy to be proven wrong.
@@miriamrosemary9110 Not in any mode, the sugar crust of the tun will be easily dissolved in stomach acid, and in blood they'll eventually die of starvation, the answer is universally no.
@@JustShotsForMeh Thanks
Dang she had a lot of eggs! Do they always have that many??
Enjoyed your video and I gave it a Thumbs Up
What are those orb thingies the tardigrates are filled with?
00:45 - I've used Google sound search and Shazam, but 'Not Recognised'... I've even gone through Andrew Huang's UA-cam music collection, but STILL cant find the title to the track played at this time (or in many of these entertaining and interesting looks into the miniature world)... PLEASE help, Thank you 😎
Video: "Human Sperm. Credit: Alexander Klepnev"
Me: 😳😳😳
I twitched every time he said zooospore when he meant to say zoospore
[ zoh-uh-spohr ]. Anyone else?
Some ancient cultures take gonads really far. I mean look at the Egyptian mythology and a translation of it involving male organs and fluids allegedly both mystic and toxic applications.
Well, it's really no wonder, it was the only physical act of sex (climax) that could be observed to create life, they had no idea what eggs were because they are not transferred through sex, they are hidden. And these are civilizations that are heavily focused on agriculture, i.e planting seeds so the act of sex and reproduction would have been very similar to them as "planting a seed".
Male tardigrades must spend A LOT of time thinking about baseball.
In case anyone here wants to know a more detailed history of humanity and it's struggle trying to understand sperm and egg cells...I would highly recommend reading=
"The Seeds of Life"
- Book by=Edward Dolnick
Dolnick (also known for his book'The Clockwork Universe') traces the winding tale of European understanding of conception biology from the 16th through the 19th century, when the merging of sperm and egg was first physically seen. He examines the theories popularized by scientific luminaries in each period, following advances in anatomy, microscopy, and scientific method as well as changes in philosophy about the relationships between men and women, humans and animals, and the living world and God. Dolnick honors the history of ideas that seem ludicrous today, including that of preformation of tiny versions of all human bodies at the beginning of creation, and makes the point that even the most brilliant investigators can miss salient information they don’t expect, as when Vesalius observed ovarian follicles a century before de Graaf but dismissed them as irrelevant. Substantive background on the work of such figures as William Harvey and Luigi Galvani may feel like a diversion to readers only interested in reproductive biology, but Dolnick composes a cohesive narrative around his central question while noting its appeal as a side topic to key thinkers in science.
Had human egg cells been observed to exist when Pythagoras believed that, was it known to exist? If not I get why Pythagoras believed that, it wasnt know that 2 parts were needed
You are brilliant ❤❤❤
I'm guessing you weren't aware that Pythagoras was a cult leader who was deathly afraid of fava beans, and died because of it.
Amazing photography! So what are all those "rocks" moving around inside the tardigrade ? I was able to spot certain things like the eyes and the muscles that move the legs, but overall the animal looks like a balloon full of rocks and the rocks appear to slide all over the place inside the creature. Obviously, they aren't really rocks so what are they? I thought maybe eggs at first but there was also a view of another speciman that had huge smooth round globs located mostly in the rear half of the body so I assume those were eggs but the front half had some rocks too. The male was loaded with rocks from end to end.
the cells
Fractal universe revealed
This is just way too interesting to me
that tardigrade sure is a spunky fellow!