How big would a Daddy Longlegs Spider need to be to kill an average Human?Would armour made of spider silk work?How would a fantasy airship operate?How powerful would the church become if demons regularly visited Earth?How would a very large, sentient spider communicate?How much of an advantage in medieval-style combat would it be to have four arms with pivoting shoulders?How would humanity organize long distance communication using an astral projection power?How would prisons handle superpowered inmates?What accommodations would a giant need?

Interaction between Ethereal Absolution versus Edgar Markov with Captivating Vampire

How much code would a codegolf golf if a codegolf could golf code?

How do slats reduce stall speed?

Is there any road between the CA State Route 120 and Sherman Pass Road (Forest Route 22S0) that crosses Yosemite/Serria/Sequoia National Park/Forest?

How could China have extradited people for political reason under the extradition law it wanted to pass in Hong Kong?

Sort, slice and rebuild new object with array data

Are required indicators necessary for radio buttons?

E: Sub-process /usr/bin/dpkg returned an error code (1) - but how do I find the meaningful error messages in APT's output?

Sous vide chicken without an internal temperature of 165

Should my "average" PC be able to discern the potential of encountering a gelatinous cube from subtle clues?

Why would the President need briefings on UFOs?

!I!n!s!e!r!t! !n!b!e!t!w!e!e!n!

Is there such a thing as too inconvenient?

Are there categories whose internal hom is somewhat 'exotic'?

Best Practice: dependency on data model names

My two team members in a remote location don't get along with each other; how can I improve working relations?

Is a butterfly one or two animals?

Is there a commercial liquid with refractive index greater than n=2?

Why doesn't the Falcon-9 first stage use three legs to land?

Can a Beast Master ranger choose a swarm as an animal companion?

Repurpose telephone line to ethernet

Does git delete empty folders?

Infinite loop in CURSOR

Unbiased estimator of exponential of measure of a set?



How big would a Daddy Longlegs Spider need to be to kill an average Human?


Would armour made of spider silk work?How would a fantasy airship operate?How powerful would the church become if demons regularly visited Earth?How would a very large, sentient spider communicate?How much of an advantage in medieval-style combat would it be to have four arms with pivoting shoulders?How would humanity organize long distance communication using an astral projection power?How would prisons handle superpowered inmates?What accommodations would a giant need?






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;








2












$begingroup$


Daddy Longlegs Spiders, officially "Pholcidae" are known to be the worlds most venomous spiders, sort of.



We are supposedly unaffected by them because their fangs are too small, the shape of their fangs, or their venom doesn't affect us due to size.




According to Rick Vetter of the University of California at Riverside, the daddy long-legs spider has never harmed a human and there is no evidence that they are dangerous to humans. - https://en.wikipedia.org/wiki/Pholcidae




I would like to know how large one of these friendly but venomous spiders would need to be to cause significant harm/damage or even death to an average sized human. I'm creating something along the lines of the movie Eight Legged Freaks (2002)



Any information or speculation is appreciated!










share|improve this question







New contributor



Mumford451 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






$endgroup$









  • 1




    $begingroup$
    "to cause significant harm/damage or even death". Significant damages such as? Squishing a human? Bus sized, I'd say. Spearing one through the torso with a leg? Car sized. Maim by biting, big dog should be good (I'm eyeballing this one, don't take my word for it). Venom? Probably hard to accurately guess, since you seems unsure about the reason why it doesn't affect us. I think you should rephrase to indicate by which means you want the "significant damage" to be done ;)
    $endgroup$
    – Nyakouai
    10 hours ago







  • 5




    $begingroup$
    Read the rest of the wiki entry that you linked. They did a myth busters, and it looks like your premise that they are "known to be the worlds most venomous spiders" is quite incorrect. They seem to have relatively weak venom.
    $endgroup$
    – Mathaddict
    10 hours ago










  • $begingroup$
    As usual, just scaling up the current design results in a non-functional organism. Respiration is often the limiting factor in scaling up insects, I suspect spiders suffer a similar limitation (though I don't know literature for this).
    $endgroup$
    – Gary Walker
    9 hours ago










  • $begingroup$
    in carboniferous era in the era where giant insect rule the world there a spider as big as cat so i think spider also affected like insect. en.wikipedia.org/wiki/Megarachne
    $endgroup$
    – Li Jun
    8 hours ago










  • $begingroup$
    Spiders or insects large enough to kill Humans (without being extremely venomous) are fortunately impossible, though that doesn't stop filmmakers from sometimes making hit movies about it. And there are examples in literature, such as Shelob in Lord of the Rings. If you decide that some of your spiders get dissected, you may be able to put in a description of what enables them to function at their size to make it seem more plausible.
    $endgroup$
    – M. A. Golding
    6 hours ago

















2












$begingroup$


Daddy Longlegs Spiders, officially "Pholcidae" are known to be the worlds most venomous spiders, sort of.



We are supposedly unaffected by them because their fangs are too small, the shape of their fangs, or their venom doesn't affect us due to size.




According to Rick Vetter of the University of California at Riverside, the daddy long-legs spider has never harmed a human and there is no evidence that they are dangerous to humans. - https://en.wikipedia.org/wiki/Pholcidae




I would like to know how large one of these friendly but venomous spiders would need to be to cause significant harm/damage or even death to an average sized human. I'm creating something along the lines of the movie Eight Legged Freaks (2002)



Any information or speculation is appreciated!










share|improve this question







New contributor



Mumford451 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






$endgroup$









  • 1




    $begingroup$
    "to cause significant harm/damage or even death". Significant damages such as? Squishing a human? Bus sized, I'd say. Spearing one through the torso with a leg? Car sized. Maim by biting, big dog should be good (I'm eyeballing this one, don't take my word for it). Venom? Probably hard to accurately guess, since you seems unsure about the reason why it doesn't affect us. I think you should rephrase to indicate by which means you want the "significant damage" to be done ;)
    $endgroup$
    – Nyakouai
    10 hours ago







  • 5




    $begingroup$
    Read the rest of the wiki entry that you linked. They did a myth busters, and it looks like your premise that they are "known to be the worlds most venomous spiders" is quite incorrect. They seem to have relatively weak venom.
    $endgroup$
    – Mathaddict
    10 hours ago










  • $begingroup$
    As usual, just scaling up the current design results in a non-functional organism. Respiration is often the limiting factor in scaling up insects, I suspect spiders suffer a similar limitation (though I don't know literature for this).
    $endgroup$
    – Gary Walker
    9 hours ago










  • $begingroup$
    in carboniferous era in the era where giant insect rule the world there a spider as big as cat so i think spider also affected like insect. en.wikipedia.org/wiki/Megarachne
    $endgroup$
    – Li Jun
    8 hours ago










  • $begingroup$
    Spiders or insects large enough to kill Humans (without being extremely venomous) are fortunately impossible, though that doesn't stop filmmakers from sometimes making hit movies about it. And there are examples in literature, such as Shelob in Lord of the Rings. If you decide that some of your spiders get dissected, you may be able to put in a description of what enables them to function at their size to make it seem more plausible.
    $endgroup$
    – M. A. Golding
    6 hours ago













2












2








2





$begingroup$


Daddy Longlegs Spiders, officially "Pholcidae" are known to be the worlds most venomous spiders, sort of.



We are supposedly unaffected by them because their fangs are too small, the shape of their fangs, or their venom doesn't affect us due to size.




According to Rick Vetter of the University of California at Riverside, the daddy long-legs spider has never harmed a human and there is no evidence that they are dangerous to humans. - https://en.wikipedia.org/wiki/Pholcidae




I would like to know how large one of these friendly but venomous spiders would need to be to cause significant harm/damage or even death to an average sized human. I'm creating something along the lines of the movie Eight Legged Freaks (2002)



Any information or speculation is appreciated!










share|improve this question







New contributor



Mumford451 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






$endgroup$




Daddy Longlegs Spiders, officially "Pholcidae" are known to be the worlds most venomous spiders, sort of.



We are supposedly unaffected by them because their fangs are too small, the shape of their fangs, or their venom doesn't affect us due to size.




According to Rick Vetter of the University of California at Riverside, the daddy long-legs spider has never harmed a human and there is no evidence that they are dangerous to humans. - https://en.wikipedia.org/wiki/Pholcidae




I would like to know how large one of these friendly but venomous spiders would need to be to cause significant harm/damage or even death to an average sized human. I'm creating something along the lines of the movie Eight Legged Freaks (2002)



Any information or speculation is appreciated!







urban-fantasy spiders venom






share|improve this question







New contributor



Mumford451 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.










share|improve this question







New contributor



Mumford451 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.








share|improve this question




share|improve this question






New contributor



Mumford451 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.








asked 10 hours ago









Mumford451Mumford451

1135 bronze badges




1135 bronze badges




New contributor



Mumford451 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




New contributor




Mumford451 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












  • 1




    $begingroup$
    "to cause significant harm/damage or even death". Significant damages such as? Squishing a human? Bus sized, I'd say. Spearing one through the torso with a leg? Car sized. Maim by biting, big dog should be good (I'm eyeballing this one, don't take my word for it). Venom? Probably hard to accurately guess, since you seems unsure about the reason why it doesn't affect us. I think you should rephrase to indicate by which means you want the "significant damage" to be done ;)
    $endgroup$
    – Nyakouai
    10 hours ago







  • 5




    $begingroup$
    Read the rest of the wiki entry that you linked. They did a myth busters, and it looks like your premise that they are "known to be the worlds most venomous spiders" is quite incorrect. They seem to have relatively weak venom.
    $endgroup$
    – Mathaddict
    10 hours ago










  • $begingroup$
    As usual, just scaling up the current design results in a non-functional organism. Respiration is often the limiting factor in scaling up insects, I suspect spiders suffer a similar limitation (though I don't know literature for this).
    $endgroup$
    – Gary Walker
    9 hours ago










  • $begingroup$
    in carboniferous era in the era where giant insect rule the world there a spider as big as cat so i think spider also affected like insect. en.wikipedia.org/wiki/Megarachne
    $endgroup$
    – Li Jun
    8 hours ago










  • $begingroup$
    Spiders or insects large enough to kill Humans (without being extremely venomous) are fortunately impossible, though that doesn't stop filmmakers from sometimes making hit movies about it. And there are examples in literature, such as Shelob in Lord of the Rings. If you decide that some of your spiders get dissected, you may be able to put in a description of what enables them to function at their size to make it seem more plausible.
    $endgroup$
    – M. A. Golding
    6 hours ago












  • 1




    $begingroup$
    "to cause significant harm/damage or even death". Significant damages such as? Squishing a human? Bus sized, I'd say. Spearing one through the torso with a leg? Car sized. Maim by biting, big dog should be good (I'm eyeballing this one, don't take my word for it). Venom? Probably hard to accurately guess, since you seems unsure about the reason why it doesn't affect us. I think you should rephrase to indicate by which means you want the "significant damage" to be done ;)
    $endgroup$
    – Nyakouai
    10 hours ago







  • 5




    $begingroup$
    Read the rest of the wiki entry that you linked. They did a myth busters, and it looks like your premise that they are "known to be the worlds most venomous spiders" is quite incorrect. They seem to have relatively weak venom.
    $endgroup$
    – Mathaddict
    10 hours ago










  • $begingroup$
    As usual, just scaling up the current design results in a non-functional organism. Respiration is often the limiting factor in scaling up insects, I suspect spiders suffer a similar limitation (though I don't know literature for this).
    $endgroup$
    – Gary Walker
    9 hours ago










  • $begingroup$
    in carboniferous era in the era where giant insect rule the world there a spider as big as cat so i think spider also affected like insect. en.wikipedia.org/wiki/Megarachne
    $endgroup$
    – Li Jun
    8 hours ago










  • $begingroup$
    Spiders or insects large enough to kill Humans (without being extremely venomous) are fortunately impossible, though that doesn't stop filmmakers from sometimes making hit movies about it. And there are examples in literature, such as Shelob in Lord of the Rings. If you decide that some of your spiders get dissected, you may be able to put in a description of what enables them to function at their size to make it seem more plausible.
    $endgroup$
    – M. A. Golding
    6 hours ago







1




1




$begingroup$
"to cause significant harm/damage or even death". Significant damages such as? Squishing a human? Bus sized, I'd say. Spearing one through the torso with a leg? Car sized. Maim by biting, big dog should be good (I'm eyeballing this one, don't take my word for it). Venom? Probably hard to accurately guess, since you seems unsure about the reason why it doesn't affect us. I think you should rephrase to indicate by which means you want the "significant damage" to be done ;)
$endgroup$
– Nyakouai
10 hours ago





$begingroup$
"to cause significant harm/damage or even death". Significant damages such as? Squishing a human? Bus sized, I'd say. Spearing one through the torso with a leg? Car sized. Maim by biting, big dog should be good (I'm eyeballing this one, don't take my word for it). Venom? Probably hard to accurately guess, since you seems unsure about the reason why it doesn't affect us. I think you should rephrase to indicate by which means you want the "significant damage" to be done ;)
$endgroup$
– Nyakouai
10 hours ago





5




5




$begingroup$
Read the rest of the wiki entry that you linked. They did a myth busters, and it looks like your premise that they are "known to be the worlds most venomous spiders" is quite incorrect. They seem to have relatively weak venom.
$endgroup$
– Mathaddict
10 hours ago




$begingroup$
Read the rest of the wiki entry that you linked. They did a myth busters, and it looks like your premise that they are "known to be the worlds most venomous spiders" is quite incorrect. They seem to have relatively weak venom.
$endgroup$
– Mathaddict
10 hours ago












$begingroup$
As usual, just scaling up the current design results in a non-functional organism. Respiration is often the limiting factor in scaling up insects, I suspect spiders suffer a similar limitation (though I don't know literature for this).
$endgroup$
– Gary Walker
9 hours ago




$begingroup$
As usual, just scaling up the current design results in a non-functional organism. Respiration is often the limiting factor in scaling up insects, I suspect spiders suffer a similar limitation (though I don't know literature for this).
$endgroup$
– Gary Walker
9 hours ago












$begingroup$
in carboniferous era in the era where giant insect rule the world there a spider as big as cat so i think spider also affected like insect. en.wikipedia.org/wiki/Megarachne
$endgroup$
– Li Jun
8 hours ago




$begingroup$
in carboniferous era in the era where giant insect rule the world there a spider as big as cat so i think spider also affected like insect. en.wikipedia.org/wiki/Megarachne
$endgroup$
– Li Jun
8 hours ago












$begingroup$
Spiders or insects large enough to kill Humans (without being extremely venomous) are fortunately impossible, though that doesn't stop filmmakers from sometimes making hit movies about it. And there are examples in literature, such as Shelob in Lord of the Rings. If you decide that some of your spiders get dissected, you may be able to put in a description of what enables them to function at their size to make it seem more plausible.
$endgroup$
– M. A. Golding
6 hours ago




$begingroup$
Spiders or insects large enough to kill Humans (without being extremely venomous) are fortunately impossible, though that doesn't stop filmmakers from sometimes making hit movies about it. And there are examples in literature, such as Shelob in Lord of the Rings. If you decide that some of your spiders get dissected, you may be able to put in a description of what enables them to function at their size to make it seem more plausible.
$endgroup$
– M. A. Golding
6 hours ago










1 Answer
1






active

oldest

votes


















17












$begingroup$

As noted in the comments, the Wikipedia article you cited contains a description of a Mythbusters episode in which Adam Savage allowed himself to be bitten by a daddy-long-legs. He experienced a "mild, short-lived burning sensation." From this we can conclude that pholcidae can bite humans, but their venom is not toxic to us.



While the venom of pholcidae has never been specifically studied, we can extrapolate some things from the study of other spider venom. Venom is characterized into two categories; necrotic and neurotoxic. Because Mr. Savage did not experience any ill effects to his nervous system, like the paralysis that often results from the bite of the black widow, we can assume that pholcidae venom is not neurotoxic, at least to humans. So, it's necrotic. This means that the main active components are peptides, and the main purpose of the venom is to aid the external digestion of the spider. This lines up with what we know about the hunting behavior of pholcidae; they immobilize their prey with silk-like threads and then envenom and consume them. It also lines up with Mr. Savage's experience; a mild burning sensation is consistent with being partially, mildly digested. It was a very small amount, so his body was able to very quickly recover from the damage.



This has lots of potential in a horror scenario. Victims do not die instantly of a poisonous bite; they are entombed in silk and then injected with acid that burns them alive very, very slowly, while a giant spider takes small bites out of the burned bits. That's terrifying. You just need to make the pholcids large enough that their webs could catch and hold a person. Pholcids are known to hunt huntsman spiders, which are roughly the same size as they are. So, your pholcids should be roughly person-sized.






share|improve this answer









$endgroup$










  • 4




    $begingroup$
    A remarkably logical answer. Also horrifying. But logical! +1
    $endgroup$
    – Joe Bloggs
    9 hours ago






  • 1




    $begingroup$
    Nah, they'd die soon enough; people aren't as robust as arthropods and have stupid things like needing functioning muscles to breathe, and to have actual blood pressure to perfuse their bodies. Can you imagine that? Enough injected digestive enzymes to melt a decent mouthful of human would probably finish em off in a few hours, tops.
    $endgroup$
    – Starfish Prime
    9 hours ago











  • $begingroup$
    @StarfishPrime I would argue that "a few hours" is a very long time to be alive while being digested, both externally and internally.
    $endgroup$
    – IAntoniazzi
    9 hours ago






  • 2




    $begingroup$
    @JohnDvorak it won't have to be in the neck... the effect of a circulatory system is to ensure that large quantities of the venom will be well distributed. I suspect that any bite near a large vein will cause death from cardiac or respiratory failure in relatively short order.
    $endgroup$
    – Starfish Prime
    7 hours ago






  • 1




    $begingroup$
    Yes. This is gold, terrifying, slow-death, gold. Thank you!!
    $endgroup$
    – Mumford451
    5 hours ago













Your Answer








StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "579"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);






Mumford451 is a new contributor. Be nice, and check out our Code of Conduct.









draft saved

draft discarded


















StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fworldbuilding.stackexchange.com%2fquestions%2f153313%2fhow-big-would-a-daddy-longlegs-spider-need-to-be-to-kill-an-average-human%23new-answer', 'question_page');

);

Post as a guest















Required, but never shown

























1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









17












$begingroup$

As noted in the comments, the Wikipedia article you cited contains a description of a Mythbusters episode in which Adam Savage allowed himself to be bitten by a daddy-long-legs. He experienced a "mild, short-lived burning sensation." From this we can conclude that pholcidae can bite humans, but their venom is not toxic to us.



While the venom of pholcidae has never been specifically studied, we can extrapolate some things from the study of other spider venom. Venom is characterized into two categories; necrotic and neurotoxic. Because Mr. Savage did not experience any ill effects to his nervous system, like the paralysis that often results from the bite of the black widow, we can assume that pholcidae venom is not neurotoxic, at least to humans. So, it's necrotic. This means that the main active components are peptides, and the main purpose of the venom is to aid the external digestion of the spider. This lines up with what we know about the hunting behavior of pholcidae; they immobilize their prey with silk-like threads and then envenom and consume them. It also lines up with Mr. Savage's experience; a mild burning sensation is consistent with being partially, mildly digested. It was a very small amount, so his body was able to very quickly recover from the damage.



This has lots of potential in a horror scenario. Victims do not die instantly of a poisonous bite; they are entombed in silk and then injected with acid that burns them alive very, very slowly, while a giant spider takes small bites out of the burned bits. That's terrifying. You just need to make the pholcids large enough that their webs could catch and hold a person. Pholcids are known to hunt huntsman spiders, which are roughly the same size as they are. So, your pholcids should be roughly person-sized.






share|improve this answer









$endgroup$










  • 4




    $begingroup$
    A remarkably logical answer. Also horrifying. But logical! +1
    $endgroup$
    – Joe Bloggs
    9 hours ago






  • 1




    $begingroup$
    Nah, they'd die soon enough; people aren't as robust as arthropods and have stupid things like needing functioning muscles to breathe, and to have actual blood pressure to perfuse their bodies. Can you imagine that? Enough injected digestive enzymes to melt a decent mouthful of human would probably finish em off in a few hours, tops.
    $endgroup$
    – Starfish Prime
    9 hours ago











  • $begingroup$
    @StarfishPrime I would argue that "a few hours" is a very long time to be alive while being digested, both externally and internally.
    $endgroup$
    – IAntoniazzi
    9 hours ago






  • 2




    $begingroup$
    @JohnDvorak it won't have to be in the neck... the effect of a circulatory system is to ensure that large quantities of the venom will be well distributed. I suspect that any bite near a large vein will cause death from cardiac or respiratory failure in relatively short order.
    $endgroup$
    – Starfish Prime
    7 hours ago






  • 1




    $begingroup$
    Yes. This is gold, terrifying, slow-death, gold. Thank you!!
    $endgroup$
    – Mumford451
    5 hours ago















17












$begingroup$

As noted in the comments, the Wikipedia article you cited contains a description of a Mythbusters episode in which Adam Savage allowed himself to be bitten by a daddy-long-legs. He experienced a "mild, short-lived burning sensation." From this we can conclude that pholcidae can bite humans, but their venom is not toxic to us.



While the venom of pholcidae has never been specifically studied, we can extrapolate some things from the study of other spider venom. Venom is characterized into two categories; necrotic and neurotoxic. Because Mr. Savage did not experience any ill effects to his nervous system, like the paralysis that often results from the bite of the black widow, we can assume that pholcidae venom is not neurotoxic, at least to humans. So, it's necrotic. This means that the main active components are peptides, and the main purpose of the venom is to aid the external digestion of the spider. This lines up with what we know about the hunting behavior of pholcidae; they immobilize their prey with silk-like threads and then envenom and consume them. It also lines up with Mr. Savage's experience; a mild burning sensation is consistent with being partially, mildly digested. It was a very small amount, so his body was able to very quickly recover from the damage.



This has lots of potential in a horror scenario. Victims do not die instantly of a poisonous bite; they are entombed in silk and then injected with acid that burns them alive very, very slowly, while a giant spider takes small bites out of the burned bits. That's terrifying. You just need to make the pholcids large enough that their webs could catch and hold a person. Pholcids are known to hunt huntsman spiders, which are roughly the same size as they are. So, your pholcids should be roughly person-sized.






share|improve this answer









$endgroup$










  • 4




    $begingroup$
    A remarkably logical answer. Also horrifying. But logical! +1
    $endgroup$
    – Joe Bloggs
    9 hours ago






  • 1




    $begingroup$
    Nah, they'd die soon enough; people aren't as robust as arthropods and have stupid things like needing functioning muscles to breathe, and to have actual blood pressure to perfuse their bodies. Can you imagine that? Enough injected digestive enzymes to melt a decent mouthful of human would probably finish em off in a few hours, tops.
    $endgroup$
    – Starfish Prime
    9 hours ago











  • $begingroup$
    @StarfishPrime I would argue that "a few hours" is a very long time to be alive while being digested, both externally and internally.
    $endgroup$
    – IAntoniazzi
    9 hours ago






  • 2




    $begingroup$
    @JohnDvorak it won't have to be in the neck... the effect of a circulatory system is to ensure that large quantities of the venom will be well distributed. I suspect that any bite near a large vein will cause death from cardiac or respiratory failure in relatively short order.
    $endgroup$
    – Starfish Prime
    7 hours ago






  • 1




    $begingroup$
    Yes. This is gold, terrifying, slow-death, gold. Thank you!!
    $endgroup$
    – Mumford451
    5 hours ago













17












17








17





$begingroup$

As noted in the comments, the Wikipedia article you cited contains a description of a Mythbusters episode in which Adam Savage allowed himself to be bitten by a daddy-long-legs. He experienced a "mild, short-lived burning sensation." From this we can conclude that pholcidae can bite humans, but their venom is not toxic to us.



While the venom of pholcidae has never been specifically studied, we can extrapolate some things from the study of other spider venom. Venom is characterized into two categories; necrotic and neurotoxic. Because Mr. Savage did not experience any ill effects to his nervous system, like the paralysis that often results from the bite of the black widow, we can assume that pholcidae venom is not neurotoxic, at least to humans. So, it's necrotic. This means that the main active components are peptides, and the main purpose of the venom is to aid the external digestion of the spider. This lines up with what we know about the hunting behavior of pholcidae; they immobilize their prey with silk-like threads and then envenom and consume them. It also lines up with Mr. Savage's experience; a mild burning sensation is consistent with being partially, mildly digested. It was a very small amount, so his body was able to very quickly recover from the damage.



This has lots of potential in a horror scenario. Victims do not die instantly of a poisonous bite; they are entombed in silk and then injected with acid that burns them alive very, very slowly, while a giant spider takes small bites out of the burned bits. That's terrifying. You just need to make the pholcids large enough that their webs could catch and hold a person. Pholcids are known to hunt huntsman spiders, which are roughly the same size as they are. So, your pholcids should be roughly person-sized.






share|improve this answer









$endgroup$



As noted in the comments, the Wikipedia article you cited contains a description of a Mythbusters episode in which Adam Savage allowed himself to be bitten by a daddy-long-legs. He experienced a "mild, short-lived burning sensation." From this we can conclude that pholcidae can bite humans, but their venom is not toxic to us.



While the venom of pholcidae has never been specifically studied, we can extrapolate some things from the study of other spider venom. Venom is characterized into two categories; necrotic and neurotoxic. Because Mr. Savage did not experience any ill effects to his nervous system, like the paralysis that often results from the bite of the black widow, we can assume that pholcidae venom is not neurotoxic, at least to humans. So, it's necrotic. This means that the main active components are peptides, and the main purpose of the venom is to aid the external digestion of the spider. This lines up with what we know about the hunting behavior of pholcidae; they immobilize their prey with silk-like threads and then envenom and consume them. It also lines up with Mr. Savage's experience; a mild burning sensation is consistent with being partially, mildly digested. It was a very small amount, so his body was able to very quickly recover from the damage.



This has lots of potential in a horror scenario. Victims do not die instantly of a poisonous bite; they are entombed in silk and then injected with acid that burns them alive very, very slowly, while a giant spider takes small bites out of the burned bits. That's terrifying. You just need to make the pholcids large enough that their webs could catch and hold a person. Pholcids are known to hunt huntsman spiders, which are roughly the same size as they are. So, your pholcids should be roughly person-sized.







share|improve this answer












share|improve this answer



share|improve this answer










answered 9 hours ago









IAntoniazziIAntoniazzi

1,4622 silver badges10 bronze badges




1,4622 silver badges10 bronze badges










  • 4




    $begingroup$
    A remarkably logical answer. Also horrifying. But logical! +1
    $endgroup$
    – Joe Bloggs
    9 hours ago






  • 1




    $begingroup$
    Nah, they'd die soon enough; people aren't as robust as arthropods and have stupid things like needing functioning muscles to breathe, and to have actual blood pressure to perfuse their bodies. Can you imagine that? Enough injected digestive enzymes to melt a decent mouthful of human would probably finish em off in a few hours, tops.
    $endgroup$
    – Starfish Prime
    9 hours ago











  • $begingroup$
    @StarfishPrime I would argue that "a few hours" is a very long time to be alive while being digested, both externally and internally.
    $endgroup$
    – IAntoniazzi
    9 hours ago






  • 2




    $begingroup$
    @JohnDvorak it won't have to be in the neck... the effect of a circulatory system is to ensure that large quantities of the venom will be well distributed. I suspect that any bite near a large vein will cause death from cardiac or respiratory failure in relatively short order.
    $endgroup$
    – Starfish Prime
    7 hours ago






  • 1




    $begingroup$
    Yes. This is gold, terrifying, slow-death, gold. Thank you!!
    $endgroup$
    – Mumford451
    5 hours ago












  • 4




    $begingroup$
    A remarkably logical answer. Also horrifying. But logical! +1
    $endgroup$
    – Joe Bloggs
    9 hours ago






  • 1




    $begingroup$
    Nah, they'd die soon enough; people aren't as robust as arthropods and have stupid things like needing functioning muscles to breathe, and to have actual blood pressure to perfuse their bodies. Can you imagine that? Enough injected digestive enzymes to melt a decent mouthful of human would probably finish em off in a few hours, tops.
    $endgroup$
    – Starfish Prime
    9 hours ago











  • $begingroup$
    @StarfishPrime I would argue that "a few hours" is a very long time to be alive while being digested, both externally and internally.
    $endgroup$
    – IAntoniazzi
    9 hours ago






  • 2




    $begingroup$
    @JohnDvorak it won't have to be in the neck... the effect of a circulatory system is to ensure that large quantities of the venom will be well distributed. I suspect that any bite near a large vein will cause death from cardiac or respiratory failure in relatively short order.
    $endgroup$
    – Starfish Prime
    7 hours ago






  • 1




    $begingroup$
    Yes. This is gold, terrifying, slow-death, gold. Thank you!!
    $endgroup$
    – Mumford451
    5 hours ago







4




4




$begingroup$
A remarkably logical answer. Also horrifying. But logical! +1
$endgroup$
– Joe Bloggs
9 hours ago




$begingroup$
A remarkably logical answer. Also horrifying. But logical! +1
$endgroup$
– Joe Bloggs
9 hours ago




1




1




$begingroup$
Nah, they'd die soon enough; people aren't as robust as arthropods and have stupid things like needing functioning muscles to breathe, and to have actual blood pressure to perfuse their bodies. Can you imagine that? Enough injected digestive enzymes to melt a decent mouthful of human would probably finish em off in a few hours, tops.
$endgroup$
– Starfish Prime
9 hours ago





$begingroup$
Nah, they'd die soon enough; people aren't as robust as arthropods and have stupid things like needing functioning muscles to breathe, and to have actual blood pressure to perfuse their bodies. Can you imagine that? Enough injected digestive enzymes to melt a decent mouthful of human would probably finish em off in a few hours, tops.
$endgroup$
– Starfish Prime
9 hours ago













$begingroup$
@StarfishPrime I would argue that "a few hours" is a very long time to be alive while being digested, both externally and internally.
$endgroup$
– IAntoniazzi
9 hours ago




$begingroup$
@StarfishPrime I would argue that "a few hours" is a very long time to be alive while being digested, both externally and internally.
$endgroup$
– IAntoniazzi
9 hours ago




2




2




$begingroup$
@JohnDvorak it won't have to be in the neck... the effect of a circulatory system is to ensure that large quantities of the venom will be well distributed. I suspect that any bite near a large vein will cause death from cardiac or respiratory failure in relatively short order.
$endgroup$
– Starfish Prime
7 hours ago




$begingroup$
@JohnDvorak it won't have to be in the neck... the effect of a circulatory system is to ensure that large quantities of the venom will be well distributed. I suspect that any bite near a large vein will cause death from cardiac or respiratory failure in relatively short order.
$endgroup$
– Starfish Prime
7 hours ago




1




1




$begingroup$
Yes. This is gold, terrifying, slow-death, gold. Thank you!!
$endgroup$
– Mumford451
5 hours ago




$begingroup$
Yes. This is gold, terrifying, slow-death, gold. Thank you!!
$endgroup$
– Mumford451
5 hours ago










Mumford451 is a new contributor. Be nice, and check out our Code of Conduct.









draft saved

draft discarded


















Mumford451 is a new contributor. Be nice, and check out our Code of Conduct.












Mumford451 is a new contributor. Be nice, and check out our Code of Conduct.











Mumford451 is a new contributor. Be nice, and check out our Code of Conduct.














Thanks for contributing an answer to Worldbuilding Stack Exchange!


  • Please be sure to answer the question. Provide details and share your research!

But avoid


  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.

Use MathJax to format equations. MathJax reference.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fworldbuilding.stackexchange.com%2fquestions%2f153313%2fhow-big-would-a-daddy-longlegs-spider-need-to-be-to-kill-an-average-human%23new-answer', 'question_page');

);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

ParseJSON using SSJSUsing AMPscript with SSJS ActivitiesHow to resubscribe a user in Marketing cloud using SSJS?Pulling Subscriber Status from Lists using SSJSRetrieving Emails using SSJSProblem in updating DE using SSJSUsing SSJS to send single email in Marketing CloudError adding EmailSendDefinition using SSJS

Кампала Садржај Географија Географија Историја Становништво Привреда Партнерски градови Референце Спољашње везе Мени за навигацију0°11′ СГШ; 32°20′ ИГД / 0.18° СГШ; 32.34° ИГД / 0.18; 32.340°11′ СГШ; 32°20′ ИГД / 0.18° СГШ; 32.34° ИГД / 0.18; 32.34МедијиПодациЗванични веб-сајту

19. јануар Садржај Догађаји Рођења Смрти Празници и дани сећања Види још Референце Мени за навигацијуу