• 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
    Read More


Drawings are ©

Spider Web

By Anders Nielsen, Ph.d.

Spiders produce silken threads that are used for building webs, snares, draglines, and cocoons.

Some other animals also produce silk at some stage in their life cycle. These species include some Lepidoptera (moths and butterflies), neuropteran (lacewings, mantidflies, and antlions) and hymenoptera (bees, wasps, ants, and sawflies).

Spiders produce silken threads throughout their life span and for purposes not confined to a single stage in a life-cycle.

Spider webs are made of silk produced in so called spinning glands. There are many types of silks; however, they are all made of proteins and something called fibroins.

The silk is secreted from glands inside the spider and is solidified to withstand the tension is it subjected to when used.

The solidification process is not fully understood, but it is hypothesized that a conformational change in the silk is responsible for turning the water soluble liquid silk into an insoluble form. In silk moths, this process of changing the conformation is brought about by pulling the silk.

Each thread in a web consists of something called alpha-chains and beta-pleated sheets. The sheets are stacked and embedded into a matrix of amino acids. Spiders’ thread is known to be very strong.

The threads’ water content is an important parameter for how the thread responds to forces. A dry thread breaks if stretched too much, while a thread with a high water content can withstand being stretched to three times its normal length.

Therefore, spider webs are often constructed with a mixture of relatively dry and wet threads. Dry, stiff threads are used for the basic framework, while elastic threads with higher water content are used for catching prey.

Privacy Policy

Read about the privacy policy of this website

Copyright © All rights reserved.

Topic: Spider Pictures
Yellow Garden S.
Topic: Golden Silk S.
Red Back Jumping S.
Topic: Yellow Sac S.
Are spiders insects?
Topic: Jumping S.
Funnel Web S.
Topic: Bird Spider
Most dangerous S.
Topic: Arachnophobia
Brown Recluse S.
Topic: Hobo Spider
Black Widow S.
Topic: Worlds Biggest S.
Wolf Spiders
Topic: Spider Bites
Camel Spider
Topic: Brazilian Wandering S.
Tarantula Spiders
Topic: Spider Videos
Spider Webs
Topic: Venom
Brown Widow Spiders