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

World's Biggest Spider

By Anders Nielsen, Ph.d.

The greatest spiders in the world by size include: tarantulas, orb weavers, wolf spiders, raft spiders, and Brazilian wandering spiders.

This site contains a short description of each. For those visitors only looking for information about the world's biggest spider, the answer is that it is the bird-eating tarantula.

Topic: Spider Bites
Camel Spider

The Bird-Eating Tarantula

The Latin name of the spider is Theraphosa Blondi. It is not aggressive, and in fact, it is a shy and timid spider. For some people, its hairs cause an allergic reaction that can be more severe than anything else the spider could do to a person.

Due to its size, it is also called the goliath bird eating tarantula.

A big bird eating tarantula.
Topic: Tarantulas
Brazilian Wandering S.

Wandering Spider

In Brazil the biggest spider is the wandering spider. It can reach a length of 4-5 inches. The name wandering comes from the fact that, during the night, they walk on the jungle floor searching for prey rather than hiding in a burrow waiting for prey to come by. The name of the genus is Phoneutra which means murderess. Not only are wandering spiders enormous, they are also highly dangerous and should be avoided at all costs.

An aggressive looking Brazilian wandering spider

Raft Spiders

The raft spider, Latin: Dolomedes fimbriatus, is the most sizeable spider found in the United Kingdom. The size of these spiders is approximately one inch. They are very stout spiders capable of capturing relatively large prey, such as damselflies.

Golden Orb Weavers

The golden orb weaver (Nephila edulis) is one of the biggest spiders found in Australia. Their webs are so large that they can be spotted at a long distance both because of their size but also because of their yellow-golden color. Females are much larger than males and can reach a length of 4.5 cm or 1.3 inches.

This is a picture of a golden orb weaver

Ancient fossils show a record of gigantic spiders million of years ago.

Recently a team lead by the Kansas-based scientist, Paul Selden, found a fossil of a large spider with legs of about 6 inches, or 15 cm. The scientists believe that the spider was large enough to catch small birds and bats.

Topic: Spider Videos
Spider Webs

The fossil was so well preserved that the scientist could see that it had bundles of hairs on its legs.

The spider lived 165 million years ago, which is more than the 6,000 years which according to creatonist, is the age of the world.

Topic: Yellow Sac S.
Are spiders insects?

As spiders are invertebrates and have no bones and are rather fragile, they are not well preserved in the fossil record. Therefore, scientists have to evaluate if various structures of spiders of today are present or not. Only in amber inclusions (spiders caught in resin) can structures be observed with greater accuracy.

Topic: Bird Spider
Most dangerous S.

For some reason, many invertebrates are attracted to resin and are occasionally caught. Invertebrates in amber can be studied by scanning methods, also known as electron and transmission microscopy. However, spiders caught in amber are limited to forested areas. Spiders that lived elsewhere, and in places with limited vegetation and forests, were not caught in resin.

Topic: Arachnophobia
Brown Recluse S.

The scientist that found the gigantic 165 million year old fossil, Paul Selden, is the author of several articles about fossilized spiders.

The structures most often studied in fossils are: carapace shape and relative length and width of the legs.

Topic: Hobo Spider
Black Widow S.

Currently there are more than 1,099 different types of fossilized spider species1.

To some extent, classification 30-40 years ago was perhaps based a little too much on uncertain scientific information, such as juvenile structures in fossils that were not well preserved compared to some of the fossils found within the last 25 years, which are much better. Furthermore, a lot of findings were published in journals that were not peer-reviewed.


1. Selden, P.A. and Penney, D. Fossil spiders Biological Review (2010), Vol. 85, pp. 171-206.

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Topic: Spider Pictures
Yellow Garden S.
Topic: Golden Silk S.
Red Back Jumping S.
Topic: Jumping S.
Funnel Web S.
Topic: Worlds Biggest S.
Wolf Spiders
Topic: Venom
Brown Widow Spiders