Gourt > Science > Biology > Flora and Fauna > Animalia > Arthropoda > Arachnida > Araneae (12)
Spiders are predatory invertebrate animals that produce silk, and have two tagma, eight legs, no chewing mouth parts and no wings. Spiders are classified in the order Araneae, one of several orders within the larger class of arachnids, a group which also contains scorpions, whip scorpions, mites, ticks, and Opiliones (harvestmen). The study of spiders is known as arachnology, and those who study spiders are arachnologists.
Many spiders hunt by building webs to trap insects. These webs are made of spider silk, a thin, strong protein strand extruded by the spider from spinnerets most commonly found on the end of the abdomen. For its weight, spider silk is five times stronger than steel. All spiders produce silk, although not all use it to spin elaborate traps. Silk can be used to aid in climbing, forming smooth walls for burrows, building egg sacs, wrapping prey, temporarily holding sperm and for many other applications.
All but one family of spiders (Uloboridae) have the ability to inject venom in order to kill and liquefy prey and also to protect themselves. Only a limited subset of spiders can produce significant medical problems by biting humans. Many other of the larger kinds of spiders can give bites that cause discomfort that may continue for some time but will not produce lasting effects.
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Spiders :: Arthropods
Arthropods :: Invertebrates
Installed my new ram today. Thanks Dad!
araneae (araneae) Wed, 30 Dec 2009 18:16:34 -0000
Installed my new ram today. Thanks Dad!
@ascetics that's so informative.
araneae (araneae) Tue, 29 Dec 2009 15:52:09 -0000
@ascetics that's so informative.
RT @mattvancil: "Direction," in Pig Latin, sounds like the best holiday ever.
araneae (araneae) Tue, 29 Dec 2009 05:36:13 -0000
RT @mattvancil: "Direction," in Pig Latin, sounds like the best holiday ever.
Kinsey Scale to Be Replaced by a Bottle of Tequila: http://www.afterellen.com/blog/badmachine/fake-gay-news-round-up-dec-14-18
araneae (araneae) Mon, 28 Dec 2009 21:43:14 -0000
Kinsey Scale to Be Replaced by a Bottle of Tequila: http://www.afterellen.com/blog/badmachine/fake-gay-news-round-up-dec-14-18
@chagrined teehee sleep well
araneae (araneae) Mon, 28 Dec 2009 16:22:19 -0000
@chagrined teehee sleep well
@chagrined gl!
araneae (araneae) Mon, 28 Dec 2009 03:52:09 -0000
@chagrined gl!
Behavorial Ecology of Spiders - Projects and publications of Dr. Jutta Schneider related to the evolution of reproductive behavior and sociality of spiders.
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Black Widow Spiders and Other Spiders of Medical Importance - Brief information on the black widow and brown recluse; links to related web sites.
Common Missouri Spiders - Descriptions and pictures of spiders indigenous to Missouri, USA.
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Common Spiders in Japan - Line drawings, photos, and notes by Mikio Sekine. Also short articles on various insects.
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Nick's Spiders - Large photo gallery and notes about the spiders of Britain, Europe, and North America.
Online Coelotinae - Descriptions, images, publications, type depository, and keys to the species of the spider subfamily Coelotinae.
Meta Description: [ Online Coelotinae ]
Poisonous Spiders of South Carolina - Factsheet from Clemson University describes widow and recluse spiders, type of injury inflicted by bites, and spider control.
Spider Myths Site - This site lists the common myths about spiders and debunks them; illustrated.
Meta Description: [ Most of the widely believed information about spiders is false. This site debunks the common myths about spiders. ]
Spider Webring - Web ring for spider lovers.
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Spiders in Ohio - General overview, some images, and information about spider research at Ohio State University.
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Spiders of Medical Importance - University of Nebraska Cooperative Extension in Lancaster County factsheet and audio on local spiders of medical importance (black widow, brown recluse, sac spider, parson spider).
Meta Description: [ Spiders of Medical Importance in southeastern Nebraska. This site features terrific photos, and research-based information on controlling spiders found in and around the home. Includes brown recluse, black widow, sac spider and parsons spiders. University of Nebraska Cooperative Extension in Lanc... ]
Spiders of North America - Attempt at a list of valid names for the spiders (Araneae) that occur in North America north of Mexico. Compiled by the American Arachnological Society.
Spiders of Northwest Europe - Images and descriptions of over 220 species commonly found in northwestern Europe, especially the area between the Netherlands and the south of France. A subsection features 190 pictures of Australian spiders.
Spiders of Queensland - Identification, description, habitat, and toxicity of common spiders in Queensland, Australia. Includes section on the Australian Redback Spider (Latrodectus hasseltii).
Meta Description: [ This is the front page of the Queensland Museum website. A virtual visit to Queensland's Museum of natural environment and cultural heritage., This is the front page of the Queensland Museum website. A virtual visit to Queensland's Museum of natural environment and cultural heritage. ]
Spiders of South India - Pictures and information about common South Indian spiders.
Meta Description: [ Pictures and information on common spiders in South India and details on research team in Arachnology division of Sacred Heart College located at Cochin. ]
Spiders of Turkey - Includes the full checklist for Turkey, photographs, general properties of spiders, poisonous spiders, and list of spider families.
Spiders of Wisconsin - List of species found in this state with estimated populations. Includes some photos.
Spiders Online - Brief notes and photographs of spiders in South Africa.
Meta Description: [ See spiders. Learn about them. Share your experiences and photographs. ]
Steve's Aussie Spider Pics - Photo gallery of spiders found in the Alice Springs area, Australia.
The World Spider Catalog by Norman I. Platnick - Detailed taxonomic information about the spider families.
World Spider Catalog - List of all families, genera, and species of spiders, with synonymy, species counts by family, and bibliography.
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