• 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
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  • 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
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  • Get to know the most dangerous spiders from around the world
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  • Fear of spiders has been a natural part of human evolution. Learn the basics about fear of spiders.
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  • The brown recluse spider is a solitary creature that seeks and prefers loneliness in shelters and small crevices.
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  • 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.
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  • Wolf spider females carry their egg sacs with them. When new spiderlings hatch, they can stay with their mother on her back
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  • Learn what to look out for if you are bitten by a spider, and when to seek help
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  • Camel spiders are not spiders. When approached it will make a hissing warning sound
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  • Brazilian wandering spiders hunt on the ground during the night - no web is needed
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  • Tarantulas are nocturnal animals. They can grow very large and are often shown at exhibitions
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  • See a video of a wolf spider with its eyes glowing in the dark - plus many other videos
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  • Learn about spider webs and how spiders produce their silk
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  • 4-5 times as many people are killed by horses than spider bites in the US.
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  • Brown widow spiders live at the east coast in the USA - they have a beautiful hourglass as coloration
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Drawings are ©

Redback Jumping Spider

By Anders Nielsen, Ph.d.

Redback jumping spiders (Phiddippus johnsoni) are common in California. It is one of the most often encountered jumping spiders in North America.

Many people believe that the redback jumping spider is particularly dangerous to humans due to its red back which is definitely not the case. The name Johnson Jumper has been suggested as an alternative, and as it a jumping spider, the name is probably less confusing.

Topic: Yellow Sac S.
Are spiders insects?


Redback jumping spiders prefer to stay in their tubular, silky nests beneath debris, wood, or anywhere undisturbed on the ground. Since the redback jumping spider is a sight hunter, it stays in its nest during nights and when the conditions for seeing prey are poor.

Topic: Spider Bites
Camel Spider


They eat prey almost up to their own size. The average size of their prey is, however, about half their own size. They feed on a number of different invertebrates, such as caterpillars, moths, and flies. They also eat spiders, most in the form of the larger females eating males.

Topic: Venom
Brown Widow Spiders


Jumping spiders are hairy and grow to approximately three quarters of an inch in length. The size of individual spiders shows great variability. The back of a Johnson spider is distinctly red, with a black strip if it is a female. The rest of the body is usually entirely black.

Topic: Spider Videos
Spider Webs


The bite from a redback jumping spider isn't fatal. The bite results in swelling and pain at the bite site. The pain and swelling usually lasts for several days. Some people experience other symptoms as well from a redback jumping spider bite. The spider belongs to the Salticidae family.

The jumping spider is not considered as dangerous as many other spiders since its venom is not as toxic as, for instance, the venom of black widows. Bacterial infections around the site of a wound should, however, be avoided at all costs.

Topic: Hobo Spider
Black Widow S.

Life Cycle

Before mating, the male walks toward the female, then backs away. He performs a kind of zigzag dance, and some males are reported to produce a sound by twitching their abdomens while dancing. Sometimes the male is killed after mating. This behavior is referred to as sexual cannibalism.

Topic: Arachnophobia
Brown Recluse S.

A Typical Sight Hunter

Phidippus johnsoni is a typical sight hunter—both when it comes to prey and mating.

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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: Bird Spider
Most dangerous S.
Topic: Worlds Biggest S.
Wolf Spiders
Topic: Tarantulas
Brazilian Wandering S.