How Upside-Down Jellies Sting You Without Touching You
Vložit
- čas přidán 10. 07. 2024
- This jellyfish might look kind of unassuming, but it's got some surprising long-range weaponry to catch its prey!
Thanks to Cheryl Ames with the Smithsonian Museum of Natural History for filling out the details of her team’s amazing discovery!
Hosted by: Olivia Gordon
SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at www.scishowtangents.org
----------
Support SciShow by becoming a patron on Patreon: / scishow
----------
Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever:
Kevin Bealer, Jacob, Katie Marie Magnone, D.A.Noe, Charles Southerland, Eric Jensen, Christopher R Boucher, Alex Hackman, Matt Curls, Adam Brainard, Scott Satovsky Jr, Sam Buck, Ron Kakar, Chris Peters, Kevin Carpentier, Patrick D. Ashmore, Piya Shedden, Sam Lutfi, charles george, Greg
----------
Looking for SciShow elsewhere on the internet?
Facebook: / scishow
Twitter: / scishow
Tumblr: / scishow
Instagram: / thescishow
----------
Sources:
www.nature.com/articles/s4200...
www.frontiersin.org/articles/...
Images:
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
commons.wikimedia.org/wiki/Fi...
vimeo.com/104596771
www.flickr.com/photos/oregons...
www.flickr.com/photos/6331949...
www.istockphoto.com/photo/ups...
www.eurekalert.org/multimedia...
www.eurekalert.org/multimedia...
• Cassiosome Firing - Mi...
Hello! We are aware that the pronunciation of zooxanthellae and nematocysts is a little funky in this video. We do our best to get the pronunciation right all the time, but in this case, we made a mistake in the pronunciation guides for those words. And since we are all currently social distancing, it was not possible to re-record those lines.
That said, we hope you can still enjoy the video and learning about these strange and wonderful jellyfish. Thanks!
-Stefan
Zooxanthellae sounds right to me🤔
We LOVE you guys!
SciShow gotta love some funk to jazz the science up a lil
@UCKQXAil-1p4fpxf_FqKd5CQ Damn dude chill
Thanks for this, but the comments are still gonna be full of people saying NEMMA TUH CYSTS 😂
"I'm not touching you! I'm not touching you!"
- Casseiopea xamachana
Alexander Steiner 😂
- also every sibling ever
Mother nature: solar powered organic minefield.
My therapist: Living pain missiles aren’t real, they can’t hurt you
Upside down jellies: *existence intensifies*
"stinging snot rockets" is the name of my alt grunge band, I demand royalties
Garrett Ahsbahs that’s what I call my sneezes, too!
Now imagine a world where jellyfish like critters can float in the air.
And say "thank you gravity" a million times.
Thank you physics.
A cryptobiote a day keeps th--oh wrong thing
Oh boy, picturing air jellyfish slime rain. Minecraft update go!
wh 40k world. "spore mines"
flying whales would be cool, But would REALLY suck for planes. If a flock of birds can down a planes engine. Wonder how a blue whale to the cockpit would suffice.
So they have a detachable part of their body, that can move on its own, to capture and bring food back to the main body? I find this really mind blowing for some reason. Like this is something from science fiction.
AMAZING Jellyfish is AMAZING....Thanks.
They don't exactly bring the food to their mouths. They just wait for it to fall in them.
So the jellyfish does headstands its' whole life?
That's the beauty of evolution: it can repurpose things if it yields better survival. Sometimes to the point where head becomes bottom
They turn rightside up sometimes when they’re moving to a new spot, but when they’re feeding or resting, they’re upside down.
Scientists: We’ll call this jellyfish “Cassiopea xamachana”
Spongebob: I’ll call you “Friend”
F is for friends who do stuff together
U is for you and me
N is for anywhere and anytime at all
Wife: "I just got stung by a jellyfish. quick, pee on it!"
Husband: [peeing on jellyfish] "This is for stinging my wife."
Peeing actually makes it worse. That's a myth thats its a treatment.
@@RationallySkeptical Peeing on the jellyfish makes the wound worse? Wat?
@@nerobernardino88 ha ha ga
Nero Bernardino it doesn’t help. It can cause unfired stingers to activate causing the sting to get worse. I believe the best method is to scrape any leftover jellyfish off with a sturdy credit card-like object, and wait it out. It may vary by the type of jellyfish though.
@@roadchewerpe5759
I understand you have to do the proper procedures if you want your jellyfish-caused-wound to get any better but the thing is: Peeing ON the jellyfish. Does it make the wound worse?
"unassuming"
Picture: Elder thing horror show
Eldritch?
@@thefrub elder thing is a specific creature from lovecraft
"Mr. Jelly, could you please stop oozing clouds of cassiosome-filled mucus in my particular direction?"
2:39 “And then they can slowly suck the dead into their mouths.” Yeah, you’re right, I wasn’t ready for this.
LOVE SciShow and the new podcast too! Hank and John have given out so much great advice and produced such terrific content for years now - I initially discovered them through the world history series but definitely my favourite CZcamsrs!
Your videos were what inspired me to jump out of my comfort zone and get a couple close friends with Neuroscience PhDs to start our own podcast to improve communication of neuroscience research to the public! We've released some videos with continuously increasing quality over the past couple of months and would love some support/any feedback possible!
These snot rocket shooting jellies used to irritate me as a young child living near Key West Florida. I always wondered how I was getting stung even though I never touched them. I got used to them after several months and they didn't seem to bother me anymore. It is very cool to see this scientific explanation. Thanks!
You open with "Stinging Snot Rocket" yet you pick "Up-side-down Jellyfish" for your title.
just when i thought jellies aren´t as dangerous as i thought they would be ...
I live in the florida keys where these nasty jellyfish live also. They are so annoying. The sting is more of a itching sensation then a burn.
Well of course, it certainly seems more adapted as a measure of hunting small animals than defending against large predators.
Imagine the box jelly getting this upgrade. Game over 🤣
those cassiosomes raise yet another question of what counts as an individual organism
I went fishing in the Cays once. The marina we chartered from was nested in a mangrove forest. The entire sea floor of the marina was carpeted in these things. No visible sand, just jellies. It was kind of surreal.
wolfman571, they must have really liked the water there!
Imagine swimming there.
My sister did step on one by accident in the little cove at the resort.@@shawbros
I've had the pleasure of finding one of these guys, scooping it up and holding it. No cloudy stinging water. Just a gooey bell and the experience of holding a jellyfish.
I'm sure I saw The Stinging Snot Rockets at Glastonbury in 1982.
We weren't even ready for this jelly.
These jellys knew how to make underwater mines that sting on contact.
defiently noot
Just when you thought it was safe to go back in the water, it's snot.
I got supermario vibes from this. Anyone remember the jellyfish thing on the ground that would shoot red projectiles upwards? I think it was super mario 3
I love these! They're my favorite jellies to look at at the aquarium! Now its going to be one of the first things I do after quarantine
Interesting and worthwhile video. Rather scary. What beach areas have such dangerous jellyfish?
If only we could all be upside-down jellies. What a wonderful world it would be!
I live in the Bahamas, and i causally pick these up cause they are interesting and I’m usually bored, but I also do it to show my younger siblings. But I’m very gentle with the jellyfish, scoop them up with my hand
SciShow is the best! I have been watching your videos for many years.. Especially your Weird Water Videos are interesting.. You have inspired me to start my own Gaming Channel in CZcams based on physics!!! You are my inspiration for my channel! Keep posting more videos!
Yes, great TABS videos Keep it up!
Olivia, your narration is top notch.
Amazing! Now i understand how me and my family had been stung in plain water without spotting any jellyfish around!
I live in the Florida keys.
Plenty o' mangroves.
Plenty of these guys too.
I can vouch for the random 'stingy' splotches of water.
We also have sea lice.
.. And, plenty of other stingy stuff; but, this explains alot..!
(Often, they just look like random grass on the sea floor.)
I went to Curaçao on holiday last February, noticed the upside-down jellyfish and later I was wondering why we got stung without any sight of jellyfish near us! Thanks so much! This is actually that particular species.
Now I understand why Spongebob and Patrick are very enthusiastic about jellyfish
Thats so cool!
I wasn’t ready for that jelly. 😆
This is why I don’t swim in the ocean
I actually went and checked the video on hydras. In that one Hank suggested rickrolling aliens.
What a time to be alive.
These animals are literally living versions of Metroid bad guys
We should name a group of these jellies a battery
This would make for a great SF monster...an alien that hunts its prey by vomiting out (relatively) tiny walking knives that then go around stabbing potential prey...
Me, swimming, minding my own business: this patch of water looks weird.... wait.... why do I hear boss music?
As a note the Smithsonian may have not known about the nematocytes until 2016, however I know that the marina laboratory on Long Key in Florida did. I had a coral reef ecology class there in 1995 and I distinctly remember the marine biologists explaining the Cassiopea's way of releasing the sting cells into the water. So as we snorkeled the area, it was a prank to swim in front of a group of snorkelers to disturb the jellyfish right before the next person swam past.
Olivia: Awesome
Me: Terrifying yet interesting
I was handed one of these jelly fish a couple of days ago by a tour guide. It made my hand itch after about a minute of holding it, but the sensation went away a few minutes after washing the mucus off. They're an invasive species in Sarasota Bay that killed off much of the sea grass that manatees rely on by blocking out the sunlight. One tour guide actually locked the jelly fish, and ended up losing his sense of taste. He went to the ER and was told he'd be fine, but shouldn't do that again. LOL
Thank you for that opening line, Olivia/writer(s).
So Cassiosomes are the blue shells of the nature. Suere nobody was ready for this.
I Love SciShow but... Ne-ma-To-cysts... Noo..
I know! I came to say that.
Yup cringed at that. Video still good tho
@@bobbygilbert2706 very!! I really love SciShow, they're definitely my favourite channel. I binge watch regularly
ne-MAT-oh-sists
@@lohphat
That's how I've been saying it. Thought I was wrong. Guess not.
Basically the jellyfish in Super Mario, thats blasts particles upwards.
Very interesting video SciShow! Also glad that you pointed out the botched pronunciations, nice job!
They're like jellyfish turrets!
Jellyfish have survived for 650 million years despite not having brains.
This gives me hope for the next generation.
Ok, boomerang
I wasnot ready for this
Stinging water? Clouds of mucus? No, we don't need to investigate this further
"Snot rockets"...reminds me of my nephew when he sneezes.
Good one!
Tell Ana! Hi!
I don't think you ready for this jelly. 🎶 My mucus too stingalicious for ya baby.
2016??? as a child in the early 90s I knew these guys stung without touching you. From at least a half dozen experiences. All the scientists at the Smithsonian had to do was ask anyone in the Caribbean and found this out.
New filmmonster: giant upside down jelly sending huge gas filled things to the surface. Upon touch they grab cling and sting... You. , then the gasbubble bursts, making the victim unconscious and they sink to the bottom of the sea again. Or lake. An entire lake that eats people.
Thank you. A damn mindblower
Those jellies just don't mess around. That was very interesting.
"Snot rockets" Yeah.
Have to tell you, that's a heck of an awesome pfp
@@soap07230 It's what I had at the time. ;->
If the jellys aren't careful they will end up on the same list as mosquitos.
"Then they can slowly suck the dead into their mouths" is the most metal description of eating I've heard.
I once accidentally swam through a massive shoal of jellyfish when I was snorkelling in the Indian Ocean. Thankfully they didn't sting me. 😰
Really fear those jellys. But I really liked your way of presenting and the way you talk. Following the channel for some years now and tbh you and everyone else have just improved and grown :)
Shirtless Myers, as far as jellies go, they’re pretty tame.
That is insane!
I was expecting detached nematocysts. Was not expecting the powerpack and propulsion system. If they have those I am willing bet they turn out to have some sort of guidance system too.
very cool
Wanna know more interesting upside down jelly facts? Some scientists did an experiment where they repeatedly woke up resting jellies, and when they fed them after a sleepless night, they were slower to react to food in the water. Jellies get groggy if they don’t get enough sleep!
Upside down jellies also tend to hang around others of their kind. They seem to prefer chilling with other upside down jellies and if disturbed with swim around awkwardly for a bit before settling next to another jelly, if there is one.
They come in a variety of colors and patterns, too. Look up video or pictures of groups of Cassiopeia jellies or upside down jellies, and you’ll see what I mean.
“Stinging snot-rockets” my new favourite term 😂😂😂
Olivia gets to host to craziest videos!
totally not ready 😂
defiently not
It's not just you Jellyfish are hella interesting. Wish we had more creatures around from that era.
Are jellies amazing? Yes. Are they also disgusting? Also yes. Thanks for the informative video and take care, stay well!
So long range stinging attacks. Next thing you know jellies will be floating in midair launching deadly invasions
My dad used to lift these with his hand while snorkeling to show us that they were jellies and not algaes or plants.
That is, until I started to feel a sting and screamed like crazy. Even my face got red and irritated.
Strange how I got stung, and not him.
freetrader, I guess it fired your way!
I got stung by one of these dudes on my lip while snorkeling once. Wasn't too bad.
I went fishing today in a mangrove forest and I got stung by so many of these guys
Olivia, let me tell you, you look like blossom flowers, you have a glow in your face that I don't know if should be attribute to your motherhood or just the happiness you might feel. But I can tell you glow lovely energy.
So they produce a swarm of small structures that basically function as independent organisms? Does that count as eusociality?
So that’s why when I went near an upside down jellyfish on my private beach my leg was hurting like I was stung.
I'm surprised more species don't use this as a means of defence. How difficult can it be, after all, snot rocket science.
That's some Metroid stuff right there.
Nematocysts ... wow snotrockets wow
Thanks SciShows I am leaving my shoes on next time. Happy Health & Easter
That fish hook has to be removed. I'm pretty sure that the local emergency room would not turn her away.
' I will call him Squishy, and he shall be my Squishy'
I grew up playing in a mangrove forest, i haven't seen these jellyfish in my life. Idk why I'm scared now thinking of what could happened to us playing in the water with these animals.
I have a love hate relationship with jellyfish. I deal mainly with sea nettles, box jellys, sea wasp, and cannon balls. Jellys are truly amazing and highly recommend just keeping then in mind when in water. I hate being stung but i am in there house. I feel with warming waters will cause more jellies.
@Nobody Knows nah, ocean is life.
They're like little non-self replicating cellular drones deployed by the organism. I wonder what other examples of that sort of thing exist in nature. Drone ants and bees come to mind but that's a little different since they're still considered individuals of the species. I suppose you could say that sperm cells and pollen are deployed by most animals in a drone-like manner but those are gametes.
Stinging solar-powered landmines? And I thought humans knew how to make weapons.
Stinging Snot Rockets would be a great name for a rock band!
Yeah, still amazed at the stuff we discover on Earth. Every. Day.
In Honduras, in a little bay off Roatan island they had upside down jellyfish. Thankfully they didn't sting (at least that humans could tell). I don't remember if there was any "stinging water" or not.
Sounds kind of nasty. Apparently their strategy is to wait for whatever it is they kill above them to drift down to the bottom as food.
pauljs75, that, and letting their algal partners photosynthesize.
And here I thought Spongebob taught me everything I needed to know about jellies.. Thanks for ruining my childhood SciShow
I have been fortunate enough to see these in real life. They also only spend some of their lives upside down.
William Wood, just when they’re eating or resting.
I'm never going to be ready for snot rockets of any kind.