Vision in Jumping Spiders
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- Опубліковано 16 жов 2024
- Jumping spiders have superb vision--their lives depend on it. Jumping spiders are visual predators, stalking their prey before the final jump. Gil Menda, a postdoctoral student in Ron Hoy's lab, is investigating the physiology of the spider's visual system.
Jumping spiders and praying mantas, the only bugs that will make eye contact with you and regard you. I find it endearing.
Yeah, that's what made me enjoy jumping spiders right off the bat.
I was at work and one was ontop of a car, and when I leaned in to get a closer look (as I had never seen one before) I was a little shocked that it stopped what it was doing and lifted its face up to look BACK at me.
@@ScopeGuardPony jumping spiders are the most social arachnids! They sure are cuties and make great pals.
@@ScopeGuardPony It was love at first sight. From that moment on I was caught in her web...
That’s why I raise both jumpers and many types of mantids. I just adore them so much.
Still glad that there aren't any at human size.... Then they may be watching you for another reason. ;-P
I looked around the Wikipedia about jumping spiders. there was jumping spider vision coverage figure on the page. one thing I noticed is that there are two narrow symmetric slices consists of the blind spots of the whole panorama. I was wondering who did this amazing study. after watching this video, I am half convinced that it's you guys own the honor of the contribution. it feels so good that one can access to whatever human knowledge or information he want to know. well done.
That figure comes from David Edwin Hill, also a prominent salticid biologist. :)
Poor little thing 🥺
This is how I imagine being probed by aliens must feel
So he imobilizes it and pokes a hole in the brain cavity? Horrifying
I am only watching this to get rid of my fear of spiders, it nearly went away.
How's your fear conquering efforts going?
me too! I caught and released a spider today at work and was so proud cause a few years ago I wouldn’t have been able to even look at it without breaking out into chills and panic. Jumping spiders are a nice gateway cause they’re objectively cute
Wowww! 😮 Does the hole heal? What about the pressure? Do fluids not escape? Gosh, so many questions! Really impressive! Thanks for sharing your insights. 🕷️👀
Spiders have organs and their body that kind of act as a tourniquet what are more like a sphincter and they just closed off that area
I hate spiders but love learning about them. I feel really bad I'm hoping she doesn't feel pain
everything feels pain, its that fear of pain as well as death that motivates all things to avoid capture and being eaten/killed! Otherwise any animal without these fears would have zero survival instinct whatsoever!
Nonciception is not pain. To feel pain you must be sentient and have emotions.
All that technical stuff aside, I'm sure these wonderful scientists would use other, less invasive methods if there were any at this technological level.
I LOVE SPIDERS! I find them to be by far the most interesting animals, I respect their existence as such, their patience, their serenity, the fact that they kill insects by the millions and so on... And I fully endorse experimentation on this level for the pursuit of knowledge.
Besides, they were extremely careful and slow going. I'd give that guy to operate on me, rather than some medical doctors I've had the honor to meet in my lifetime! There are some freakin' butchers out there!
Wax cause it's not harmful on it's own and can be washed off. They could have used superglue or some other shit. That needle looks big, but considering the spider is 6-8 mm long it's probably one of the smallest ones in existence and it's just zoomed in to the max...
Now that I've typed all this, I'll say one more thing. That spider most probably died in the end. And I still welcome their effort and study.
Cheers.
krxZGB "To feel pain you must be sentient and have emotions" That is a bold statement and im curious how did you get to that conclusion? Patients in intenvsie care units; whose emotions and conciousness we think as turned off are responding to physical pain at different levels. Ethics and extends of animal experimantation is a topic of another discussion, but making statements in such cryptic fields of biology seems groundless and misleading.
@@ythesap Yep the guy's a moron lol. Man, I sometimes love looking through youtube comments just to see what kind of idiotic shit I can find from the always self-proclaimed experts.
I for one fully endorse and welcome testing on human specimens such as this one.
Cameron both of which try to avoid painful stimulus. It is intuitive all life forms have some kind of pain perception, just that neuroscience in its current babysteps can't make or deny such claim. One last thing; if you are claiming non-existence of a concept in Biology, you need a comprehensive, undeniable proof for it. Take a look at history of any type of modern medicinal therapy to see how this arrogant approach proved wrong time and time again.
I hope you guys like, let that poor little spider go free, and removed all that crap off him/her...
Sadly it's very unlikely.
Humans.
@Cameron That's not exactly what I meant; I was referring to unnecessary cruelty motivated by greed, not being parasites _per se._ But since you've started this subject... I don't know what “woke” is supposed to mean in this context, but it's a fact. No other species takes as much resources and produces as much junk, a lot of which cannot even naturally decompose. Don't believe me? Google “global hectare”. Sorry mate, it's hard science.
@carcharoclesmegalodon6904 there's a site in the uk where you can buy rescued lab jumping spiders... no luck finding one here in the u.s though
RIP bold jumper
For the sake of science........well.......OK, but it still seems a shitty thing to do to a harmless little spider.
the fact that they managed to probe a spider's brain... that's better than doing surgery on a grape.
Tarantula's don't do much except stay in their little den and attack a
prey when it comes to close and sometimes to drink if it gets a little
dry for them. And they can feel vibration if a prey comes to close and
attack.... no need for good vison so they evolved to be nearly blind.
Jumping spider are explorers..... they love a little adventure and they
do it fast and jump..... very far for their size and everything.... but
to do that you need vision... good vison... so they evolved to have
very good vision. that's how evolution works so I knew this all the
time. Also... logic.... No need to do this to this poor little jumping spider :(
Goddamn these are some heavy nerds
A clockwork orange
I got the reference bro XD
Lobotomizing jumping spiders?
@Cameron he might be serious
Wtf did you numb the spider b4 putting a 🕳 hole
Thank you gentlemen for your contribution and terrific video! Charles Walcott
This was incredibly fascinating to see how you all made this happened.
It's not a 'pop topic' for average people but for a select few this is ground-breaking.
Indeed I'm into robotics and look forward to the future of salticid visual systems and it's effect.
There'd be only ya'll to thank.
Keep up the great work!
Amazing, in the Weizmann Institute(Israel), the scientific study the eyes of the flies
It is good to watch but also I feel pretty bad for the spider. Felt like mad scientist that for information are willing to do some pretty crazy stuff. But it's ok because it's for scientific research haa! I'm all for holding the spider with wax, it can be washed off and set free but poking it while it's trapped and alive?! Science is a great thing....... Sometimes, but feel its ruined humanity's relationship towards nature. No one's ok not knowing, we all wanna know and the things we do to get that knowledge is never challenged.
This is awesome.
that's so sick
I know it's "just a spider" but it seems rather Joself Mengele to wax a spider in place and poke it's cute little head with needles in the name of science.
You are the same person that probably buys his meat from local super markets for a lower price. However, at the same time do not care about mistreatment of the animals you eat.
Mark, I agree with you. I thought this was horrible. Who cares about their vision? They need to be using their intelligence to cure cancer or something.
@@booper343 It's not useless tho. As science has a lot of subsections and those subsections are rely on each other a lot of times. My point is that if we for example understand the vision of this kind of spider it might contribute to future researches on human eyes some day just as it happened with many other things in history
@@booper343 as an optometrist I am, and many others in physics, biology and medicine...
You'll see, getting to know all this is important because it can teach us many many things, like color receptors and see if they match our anatomy (so we can safely say, for example, that a given substance allows us to see a certain colour).
Eyes are very very special, all we learn comes from them mostly, it let us interpret it in our brain. And, the special thing about is that evolution lead us to see just a specific array of visible light (the light spectrum) but if you heard the video, you'll see that they can even see ultraviolet, and we can't see that, but, why? Why is it that they got it and us don't? What about other living things.
Yeah, it sucks, yeah it's bad, but there is no useless knowledge
@@booper343 Yep. It's a classic caveman instinct to play around with an animal in this way, a true scientist would find ways to do things like this without doing any harm, believe me it's possible, it's just more time consuming and they don't care about a life.
0:7:50 Can spiders move their retina?
Jumping spiders can, in those two forward facing eyes.
@Cameron Yes, only a few spider species have developed this ability, but instead of moving the entire eye, they move the retina to track prey.
This video is missing Beavis and Butthead
Floyd Mayweather
This seems pretty cruel 😐😐
The refrigerator
Wax
Needles and poking
How is this harmless? And how do you have permission to be making holes in spiders? Everything feels pain.
not in the way you might think, spiders dont feel pain in the same way we do, they dont have the same type of nervous system
also if you didnt hear, they said their trying not to make the spiders brain explode, hence why their doing it so carefully and with extreme precision cus one wrong movement and the spider dies
besides, that hole will heal, and when the spider sheds its skin the next time after this was done the hole wont be there anymore, it will have regenerated
Too bad we can’t tell how bugs experiences pain..
actually we sorta can
by understanding their nervous system, which we have a good knowledge of
If jumping spiders can be hairless there are 2 of them in my room
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.
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They have the body shape of a black widow but brown and they have white spots ....
Sounds like a false widow to me bud
Did they plug the hole and set it loose? I’d pay money for a good lobotomized spider.
I learned nothing here. The video didnt show the vision of a spider. It just showed us what sounds it could feel
This is so stupid
Why poke them 😡
lol tastic numbers babybabybabycak3s :D
damn
I guess intelligence and being handsome doesn't come together lol
There’s a lot of PC comments on here, and it’s annoyingly interesting. Remember if it weren’t for the nazis we wouldn’t have as sufficient data about humans. Science is fascinating but you need to absolutely exceed what is human to make things humane.