• The yellow garden spider prefer to roam in its web with its head down. Explore
  • The red back spider prefer to live in its silky nest and it is capable of eating prey its own size Read More
  • The bite from a yellow sac spider is like a wasp bite. Many house spiders are killed because of this
  • Pictures of the most venomous spiders ... some are really ugly
  • The golden silk spider wraps its prey (insects) in silk thereby immobilizing it before dinner
  • The jumping spider can jump a distance of >30 times its own length and other impressive facts
  • Spiders have 8 legs, no antenna and no wings. Insects have six legs, two antenna and sometimes wings
  • The funnelweb spider is very aggressive. Its bite can cause death within 15 minutes by atratoxin
  • The bird spider are tarantulas. They live in Asia and China and most prefer burrows
  • Get to know the most dangerous spiders before you are killed by one of them
  • Fear of spiders has been a natural part of human evolution. Learn the basics about fear of spiders
  • The brown recluse spider is a solitary creature that prefers shelters and small crevices
  • The hobo spider is sometimes referred to as the aggressive house spider. It is not aggressive at all
  • Females are double the size of males. They don’t eat males unless no other food is available
  • Learn about spiders so big that they can capture, kill and eat birds
  • Wolf spider females carry their egg sacs with them. Spiderlings stay with their mother on her back
  • Learn what to look out for if you are bitten by a spider, and when to
    seek help
  • Camel spiders are not spiders. When approached it will make a hissing warning sound
  • Brazilian wandering spiders hunt on the ground during the night - no web is needed
  • Tarantulas are nocturnal animals. They can grow very large and are often shown at exhibitions
  • See a video of a wolf spider with its eyes glowing in the dark - plus many other videos
  • Learn about spider webs and how spiders produce their silk
  • 4-5 times as many people are killed by horses than spider bites in the US
  • Brown widow spiders live at the east coast in the USA - they have a beautiful hourglass as coloration


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Most Dangerous Spider in the World

By Anders Nielsen, Ph.d.

Which spider is the most dangerous in the world, and which is the most poisonous?

A wound from a spider may be dangerous in many, and sometimes unpredicted, ways.

Topic: Jumping S.
Funnel Web S.

First of all, spiders have evolved their venom to target their main prey—insects. Since humans belongs to mammals, the venom from spiders is generally less harmful to humans than insects. However, there are many examples of people getting killed by spiders, so the first thing to consider is the toxicity of the venom.

Topic: Spider Videos
Spider Webs

The second thing to consider is the size of the spider. In general, the larger the spider the more mechanical damage to the victim’s skin that is imposed.

The third thing to consider when evaluating which spider is the most dangerous is the abundance of the spider compared to the density of humans in the area where it is living.

Also, factors like habitats and behavior should also be considered.

Taking all of this into account, the brown recluse spider is probably the most dangerous spider in the world.

Topic: Hobo Spider
Black Widow S.

Widow Spiders

Widow spiders also constitute a significant threat to people in the United States. The most well known is the black widow spider, but if based on venom needed to kill a man, the brown widow spider is in fact more dangerous than the black widow.

Topic: Yellow Sac S.
Are spiders insects?

However, because of its sheer size, the black widow is more dangerous than the brown widow. Its venom is perhaps 50 percent as dangerous as the venom from a brown widow, but its ability to penetrate human flesh is much better than that of the brown widow.

Topic: Venom
Brown Widow Spiders

Topic: Arachnophobia
Brown Recluse S.

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A black widow spider with her eggs

Most Poisonous Spider in the World

Which spider is the most poisonous of the world ?

The most venomous spider in the world is the Brazilian wandering spider, also known under its Latin name Phoneutria nigriventer. At the bottom of this page, you'll find a picture of this spider.

Topic: Spider Bites
Camel Spider

The venom from the Brazilian wandering spider is so toxic that 0.006 mg of it can kill a mouse.

If you are not living in Brazil or the countries close to Brazil, there might be some other spider more dangerous to you than the world’s most venomous spider.

Topic: Worlds Biggest S.
Wolf Spiders

Most Poisonous in the United States

The most poisonous spider in the United States is probably the brown recluse spider. Other well known American spiders are the widow spiders. Of these, the brown widow is slightly more venomous (has the most potent venom) of the two. However, because the black widow spider is larger, it is capable of inflicting more dangerous, poisonous bites. The hobo spider, which cannot be found in the most populous states of the U.S., such as Florida, Texas, New York, and Washington,is also rather poisonous, although some reports about this spider are widely exaggerated, to put it mildly.

Topic: Tarantulas
Brazilian Wandering S.


Australia is home to some of the most venomous spiders in the world, such as the funnel-web spider and the red-back spider. The red-back spider is actually a widow spider, also known as Latrodectus Hasselti. This black widow spider is also very small, so one has to be very careful. The funnel-web spider has a characteristic web formed like a funnel. Its Latin name is Atrax robustus. This funnel-web spider has many close relative in the United States that are not nearly as poisonous as their Australian brethren.

In the articles section, you might find more information about the most poisonous spider in your area if you live in the United States.

Topic: Golden Silk S.
Red Back Jumping S.

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Topic: Spider Pictures
Yellow Garden S.
Topic: Bird Spider
Most dangerous S.