Introduction:Spiders get a bad rap for being little monsters. The good part is that most spiders are not that harmful to man, and the amount of dangerous bugs they eat help to keep the eco system balanced. The list below are 5 spiders that I feel can ruin your day if they bite you.
The Brazilian Wandering Spider is a large spider named for its nocturnal wandering habits, resting during the day under rocks or other objects and not having webs like most spiders. The spider is very aggressive and has deadly neurotoxin venom. The good part is there is antivenom in place that keeps deaths at very low levels. The 2010 Guinness Book of World Records named it the most poisonous spider in the world. The spider is found in South America and sometimes stowaways in Banana shipments from the area.
The Sydney Funnel-Web Spider is a large spider that is named for the type of funnel web entrances it makes for the borrow it lives in. The female of the species tends to stay in its borrow while the male member of the species wanders around looking for a mate in warm weather. The wandering action of the spider is when the most human to spider contact occurs. The scary thing about this spider is the fangs are so long they can penetrate a man's boot in some cases. The spider is very aggressive and may bite repeatedly. The venom of the Funnel Web is a neurotoxin that is highly toxic to humans. The advent of antivenom has made deaths a rare event.
The reason I used a whole genus of spider (Latrodectus) is because they have a few known deadly spiders in the same group and some not that well known. The black, red, and brown widows of the Americas and the red back spider of Australia are commonly known spiders in this group. The black and brown button spiders found in Africa and the Middle East are not that well known. The widow spider is named for the female of the group killing and eating the male after mating. The female in most cases has a red mark in the shape of an hourglass or spots on its underside. The female's venom is much more toxic than the males. The venom has latrotoxin in it that can cause pain in the abdomen and muscles for 7 days up to 3 weeks. The bite is treated with a pain reliever and an anti-inflammatory agent.
The mouse spider is a large Australian spider that is said to have venom with the same toxic similarities as the funnel-web spider. The good part is the funnel- webs antivenin can be used to treat the bite of the mouse spider. The mouse spider is not that aggressive to humans and may give dry bites. The borrow may reach up to 12 inches in depth
Recluse Spiders or violin spiders for the violin mark on their back are a well known group of spiders . The recluse spiders have a necrotic flesh destroying venom. The wounds of the spider are slow to heal causing infections and in some cases skin grafts. The large wounds can cause infections. The good part is the spiders of this group are not that aggressive. The most poisonous of the group is the Chilean recluse, with deaths reported, due to systematic reactions. I feel it is good to know that many people have self diagnosed themselves with a brown recluse bite when it was some other factor like a flea or tick bite another type of recluse spider with less venom or another spider in general.
The world of spiders is a little eerie, but they are part of a very fragile eco chain and without them, humans would be a lot worse off.
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