The book, Black Widow, America's most
poisonous spider, by R. Thorp and W. Woodson
was published in 1945. In it they list California
as the state having the most recorded black widow
bite cases, and either in their book or another one
most of these bites were attributed to sitting on or
near them in outhouses. Whether this is still the
most frequent place for bites to happen, with the
reduction in number of outhouses, is hard to tell.
I don't know of any recent comprehensive studies,
but they may exist somewhere.
Thorp and Woodson's book is not entirely reliable,
but is the only thing I have available. The mortality
rate calculated from their table of reported bites is
slightly over 4%. Of course,not all bites are
reported. Deaths usually are of children or adults
with circulatory or respiratory diseases, as the
venom is a neurotoxin that attacks the nerve centers controlling the heart and lungs, as well as
affecting the nerve-muscle junctions.
2006-07-13 07:43:25
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answer #1
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answered by Anonymous
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Although their venom is extremely potent, (15 times as potent than that of the rattlesnakes; it is also reported to be much more potent than the venom of cobras and coral snakes), these spiders are not especially large. Compared to many other species of spiders, their chelicerae are not very large or powerful.In the case of a mature female, the hollow, needle shaped part of each chelicera, the part that penetrates the skin, is approximately 1.0 mm (around .04 inch) long, sufficiently long to inject the venom to a dangerous depth. The males, being much smaller, can inject far less venom and inject it far less deeply. The actual amount injected, even by a mature female, is very small in physical volume. When this small amount of venom is diffused throughout the body of a healthy, mature human, it usually does not amount to a fatal dose (though it can produce the very unpleasant symptoms of Latrodectism). Deaths in healthy adults from Latrodectus bites are relatively rare in terms of the number of bites per thousand people. Only 63 deaths were reported in the United States between 1950 and 1989.Widow spiders have more potent venom than most spiders, and prior to the development of antivenom, 5% of reported bites resulted in fatalities.
2016-03-27 03:57:43
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answer #2
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answered by Anonymous
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Because of the testosterone(sp) level in the sweat around their gentials and aren't black widows females well the venomous and larger ones right? Because they are females and the chemical men give off testosterone which is probably very pugnent in the gential area because it's always moist from sweat.
how did I do?
2006-07-13 07:09:16
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answer #3
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answered by Who me? 4
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I guess the black widow bites the genitals while one is asleep n feels somewhat threatened...
2006-07-13 07:16:27
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answer #4
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answered by ♥ Snowflake ♥ 4
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They are being defensive having made a home in a toilet. It doesn't happen so much any more these days. I was told it happened to my grandfather when he was a teenager, but not indoors. They had an outhouse.
2006-07-13 07:13:36
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answer #5
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answered by Lubers25 7
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Possibly using outdoor toilets and sitting down, letting the... junk... get near the lid where spiders might be hiding?
2006-07-13 07:08:05
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answer #6
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answered by Defender 2
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Because they have a heat seeking device, and the male genitals are warm, maybe.
2006-07-13 07:07:29
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answer #7
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answered by Pirate_Wench 5
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because spiders look for soft places to bite, i've never touched a man's genetals(thats sick).
but im just guessing.
2006-07-13 07:10:37
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answer #8
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answered by lucky c 2
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the spiders go in to clothing and and people dont know it
2006-07-13 07:09:24
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answer #9
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answered by apryl 2
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Holy **** now youve made me scared.
2006-07-13 07:12:06
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answer #10
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answered by Anonymous
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