most dangerous spider .. ?

Question

which kind of spider is the most dangerous ? :
i've heard of : Black widow , Funnel-web spider , wandering spider , daddy long-legged spider..
among these , which is most venomous / dangerous ? And is Tarantula dangerous to us ?

Answer 1

The daddy long leg has one of the highest doses of venom, but their incisiors are too small to puncture human flesh, so humans cannot get the effect.

ALL spiders have venom, even taranchulas. Black widows are only deadly to people with weak immune systems like children, the elderly or people with HIV.

Answer 2

It is an urban myth that daddy-long-legs spiders have the most potent venom. They don't. It is also a myth that they can't bite you, they can. In fact, because daddy-long-legs are so innocuous their venom hasn't been tested as they do not pose any threat to humans.

The widow spiders, of which there are many, can kill people or make them seriously ill. Some are worse than others. The black widow of the Americas and the redback of Australia are two of the most dangerous. Even so their bites are usually dangerous only for the very young or the very old. There has been an antivenom for widow spider bites for a long time.

The funnel web spiders can be very nasty and the Sydney funnel web, atrax robustus, is the most dangerous spider in Australia and the second most dangerous in the world. Fortunately there is now an antivenom for it and there have been no fatalities since it became available. The most dangerous spider is a Brazilian spider (whose name I can't remember) which kills people every year.

Answer 3

omfg, I am so sick of hearing that the Daddy Long Leg, also known as the Harvestman is the most deadly spider. First of all, they are not a true spider, and secondly, they are not even mildly venomous. They are harmless to humans.

The spider with the most venomous bite is the Brazilian Wandering Spider...Hands down. It is a large, extremely aggressive spider that lives in the Amazon Basin of South America. It lives in very remote areas and does not come into contact with humans very often. Also, for a spider to create venom, it uses valuable energy so almost all spiders have the ability to regulate how much venom they inject. The Brazilian Wandering Spider is very frugal when it comes to injecting venom, and will not use very much in a single bite. Sometimes it injects no venom which is known as a "Dry Bite". That being said, about .00002 ounces of this spiders venom, much less than a single drop, is enough to kill an average sized mouse. A fully dosed bite from this spider is way more than is necessary to kill a full grown, healthy, adult, human. This spider is the most venomous, but not the most deadly. That distinction goes to Sydney Funnel Web Spider.

This spider lives in populated areas, is also aggressive, has an extremely potent venom, and almost always delivers a full dose of venom in it's bite. It's bite is never "dry".

An anti-venom has been developed for both of these spider's venoms, and deaths are rare.

Other spiders with deadly venoms...

- The Black and Brown Widows
- Six Eyed Sand Spider

Dangerous, but not so deadly spiders......

- Hobo Spider
- Brown Recluse Spider
- Yellow Sac Spider
- Bird Spider (a Tarantula found in China)

Don't believe the Daddy Long Leg statements, that is a common myth and is completely un-true.

Me Likes Arachnids!!!!

Answer 4

black widow is probably most venomous. Unfortunately, the common names you use can pertain to many different spiders. Funnel web spiders are not at all dangerous. Wandering spiders arent either. daddy long legs (harvestmen) dont even produce venom, so no problem there.
Tarantulas are rarely dangerous.

I think black widow is probably the worst of the bunch.

Answer 5

It is hard to define which spider in the world is the most dangerous to humans. Several spiders could qualify, depending on what you mean by dangerous. Do you mean the spider with the most toxic venom, measured by its effect on newborn mice or other mammals? Or do you mean the spider that has caused the death of the most people? Those that have the strongest venom may not be encountered by humans very often, or may even have trouble piercing human skin and so are not considered to be "dangerous". These include the Daddy Long Legs, which people often say is the most dangerous or most poisonous but in fact can't pierce a person's skin with its very small fangs. See this page for further info on the Daddy Long Legs. Data are usually only kept on bites from spiders that are potentially deadly or cause severe reactions and these data are not recorded consistently at a national or international level. So to answer this question I will define dangerous as "deadly".

On current evidence the most dangerous spiders in the world are Funnel-web spiders (Atrax and Hadronyche species), Redback Spiders and their relations (Latrodectus species), Banana Spiders (Phoneutria species) and Recluse Spiders (Loxosceles species). In Australia, only male Sydney Funnel Web Spiders and female Redback Spiders have caused human deaths, but none have occurred since antivenoms were made available in 1981.

The Australian Funnel-web spiders are among the deadliest spiders in the world in the effect their bites have on humans and monkeys (although the bite has little effect on dogs and cats). There are many species of funnel-web spiders in Australia but only male Sydney Funnel-webs have caused human deaths. There have been only 13 deaths recorded from male Sydney Funnel-webs, but up to 30-40 people are bitten by funnel-web spiders each year. Mouse spiders may have venom that is as toxic as that of some funnel-webs, as some patients have had severe reactions to their bites, although no-one has been recorded as having died from the effects of a mouse spider bite. Antivenoms are available for both Funnel-web and Redback Spider bites.

A group of spiders that is dangerous in many countries belongs to the genus Latrodectus in the Family Theridiidae. In Australia we have the Redback Spider (Latrodectus hasselti). In America, a common representative of this genus is the Black Widow (Latrodectus mactans). Antivenoms are available for both Funnel-web and Redback Spider bites.

A deadly spider which comes from South America is the Banana Spider, Phoneutria species. In south-eastern Brazil between 1970 and 1980, more than 7,000 people were admitted to hospital with bites from this spider. An antivenom also exists for this species. These are also called Brazilian Wandering spiders and have been reported in bunches of bananas imported into the United States.

The Recluse or Fiddleback Spider is a deadly spider belonging to the genus Loxosceles. Recluse spiders are found in many parts of the world and have been introduced into Australia. The venom of this spider can cause severe skin necrosis (eating away of the flesh) and can be fatal although not many deaths have been recorded.

Answer 6

all but few species of spider are venomous. there are no native species in the UK classified as dangerous,or medically significant. there have been reports of one species of poisonous spider that has established itself in the UK,but there is nothing as yet to confirm this. different people have different tolerance levels to spider venom so a bite that may hardly be more than a tiny red spot to one person could cause pain,swelling and bruising to another. persons with allergies to insect venom could even have a more severe reaction resulting in shock. world wide,since 1969 ,there have been no human deaths as a result of spider venom. for chuckler, in the US,it is illegal to sell a dangerous or poisonous animal,reptile or spider,without special permits.

Answer 7

That one guy was right, as far as venom goes, Daddy Long legs. However, they are unable to bite people. The Black Widow is prob. the most poisonouse to humans but with todays medicine it is virtually unheard of people dying from a bite as long as they seek immidiate medicle attention. As for the Brown Recluse it can be fatal to small children and cause seriouse injury to adults. Again as long as you recieve immidiate medicle attention, no worries. Ohio State University has some very good information on this. :)

Answer 8

most venomous is daddy long legs, but mots to small it cant bite you

most agressive and dangerous, brown recluse

Answer 9

funnel-web