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spider : any of an order (Araneae synonym Araneida) of arachnids having a short, usually unsegmented abdomen linked to the cephalothorax by the pedicel, chelicerae modified into poison fangs, and two or more pairs of spinnerets at the posterior end of the abdomen for spinning threads of silk for various uses (as in making cocoons for their eggs or webs to catch prey) — Webster   See also   OneLook


Roget’s II (Thesaurus.com), Merriam-Webster Thesaurus, Visuwords


Spiders are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other orders of organisms. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every habitat with the exceptions of air and sea colonization. — Wikipedia

Spider (Encyclopædia Britannica)

Spiders (One Zoom)
Araneae (Catalogue of Life)
Spider (WolframAlpha)




Arachnology is the scientific study of arachnids, which comprise spiders and related invertebrates such as scorpions, pseudoscorpions, and harvestmen. Those who study spiders and other arachnids are arachnologists. — Wikipedia

Arachnology (International Society of Arachnology)

The World Spider Catalog (International Society of Arachnology)
World Spider Catalog, Version 23.5 (Natural History Museum of Bern)




History of the World Spider Catalog (International Society of Arachnology)


DDC: 595.44 Spiders (Library Thing)
Subject: Spiders (Library Thing)

Subject: Spiders (Open Library)

LCC: QL 458.4 Spiders (UPenn Online Books)
Subject: Spiders (UPenn Online Books)

LCC: QL 458.4 Spiders (Library of Congress)
Subject: Spiders (Library of Congress)

Subject: Spiders (WorldCat)




Spiders & Scorpions (Biology4Kids)

MERLOT: Multimedia Educational Resource for Learning and Online Teaching
OER Commons: Open Educational Resources



How to become an Arachnologist (Chris Buddle, Arthropod Ecology)


Association for the Promotion of Spider Research
The World Spider Catalog Association

International Society of Arachnology
American Arachnological Society
British Arachnological Society


Journal of Arachnology (American Arachnological Society)
Arachnology (British Arachnological Society)
Spiders (EurekaAlert, American Association for the Advancement of Science)
Spiders (bioRxiv: Preprint Server for Biology, Cold Spring Harbor Laboratory)
Spiders (Science Daily)
Spiders (Science News)
Spiders (Phys.org)
Spiders (NPR Archives)



Spider (USA.gov)


More News …

Spiders and Ticks News -- ScienceDaily Spiders, scorpions and ticks in the news. Learn why a spider hanging from a thread does not rotate, how spiders find a mate and how ticks carry Lyme Disease. Read about spider silk and spider webs.

  • Brown widow spiders' aggression likely driver of...
    on March 13, 2023 at 2:11 pm

    Black widow spiders have earned a fearsome reputation for their venomous bite. But in parts of the southern United States these spiders have much to fear themselves -- from spider relatives who really don't like their company. In the past couple decades, researchers have noticed black widow spiders being displaced by the brown widow, a fellow species in the same genus. But new research suggests this isn't a simple case of one species winning the competition for food or habitat. Instead, a study […]

  • Noble false widow spider found preying on pygmy...
    on February 21, 2023 at 4:30 pm

    Scientists have published the first record of a noble false widow spider feeding on a pygmy shrew, a species of tiny mammal protected in Ireland. The pygmy shrew -- a protected mammal -- was captured on spider's web on a bedroom window, then paralyzed and hoisted to its doom by the invasive spider.

  • Using spiders as environmentally-friendly pest...
    on February 16, 2023 at 10:22 pm

    Groups of spiders could be used as an environmentally-friendly way to protect crops against agricultural pests. That's according to new research which suggests that web-building groups of spiders can eat a devastating pest moth of commercially important crops like tomato and potato worldwide.

  • More effective protected areas needed to halt...
    on January 23, 2023 at 5:32 pm

    Protected natural areas of the UK are struggling to halt declines in insects and spiders that have occurred over the past 30 years, according to a new study.

  • Black-legged tick genome deciphered
    on January 19, 2023 at 4:28 pm

    Scientists have deciphered a comprehensive, continuous genome for a parasite responsible for transmitting Lyme disease and other serious infections to hundreds of thousands of Americans yearly. With their newly described genome for the black-legged tick, or deer tick, the researchers identified thousands of novel genes and new protein functions, including proteins associated with tick immunity, disease transmission and developmental stages.

Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.

  • Clout-lighting: Pranking your partner for likes...
    on March 31, 2023 at 5:30 pm

    What would you do to get more likes or shares on your favorite social media platform this April Fools' Day?

  • Some female spiders pretend to be dead so...
    on March 30, 2023 at 4:23 pm

    A team of bio-scientists affiliated with several institutions in China, working with a colleague from Australia, has found that the females of some species of funnel spiders play dead to attract male sexual partners. In their study, reported in the journal Current Zoology, the group collected several specimens of Aterigena aculeata and tested their behavior in the lab.

  • New species of trapdoor spider confirmed in...
    on March 21, 2023 at 4:00 pm

    A trio of arachnologists at Queensland Museum Collections and Research Center, has described the rediscovery of a species of giant trapdoor spider believed to live in hidden parts of Queensland, Australia. In their study, reported in Journal of Arachnology, Michael Rix, Jeremy Wilson and Paul Oliver conducted a four-year field study looking for evidence of the spider and conducted a DNA analysis using specimens in the museum and some found in the field.

  • How do we make farming better for the planet? Ask...
    on March 20, 2023 at 5:24 pm

    When a family of five-ton elephants stomps and chomps its way through your crops, there's only one winner. And in the central African nation of Gabon, farmers are getting fed up with the giant animals trampling their fields—and their livelihoods.

  • Animal personalities can trip up science, but...
    on March 15, 2023 at 3:04 pm

    Several years ago, Christian Rutz started to wonder whether he was giving his crows enough credit. Rutz, a biologist at the University of St. Andrews in Scotland, and his team were capturing wild New Caledonian crows and challenging them with puzzles made from natural materials before releasing them again. In one test, birds faced a log drilled with holes that contained hidden food, and could get the food out by bending a plant stem into a hook. If a bird didn't try within 90 minutes, the […]


Here are links to pages about closely related subjects.

Knowledge Realm

Terrestrial   (Earth)

Sphere Land, Ice, Water (Ocean), Air, Life (Cell, Gene)
Ecosystem Forest, Grassland, Desert, Arctic, Aquatic

Tree of Life
Microorganism Virus
Prokaryote Archaea, Bacteria
Eukaryote Protist, Fungi, Algae, Protozoa (Tardigrade)
Plant Flower, Tree
Cnidaria Coral, Jellyfish
Cephalopod Cuttlefish, Octopus
Crustacean Lobster, Shrimp
Arachnid Spider, Scorpion
Insect Ant, Bee, Beetle, Butterfly
Fish Seahorse, Ray, Shark
Amphibian Frog, Salamander
Reptile Turtle, Tortoise, Dinosaur
Bird Penguin, Ostrich, Owl, Crow, Parrot
Mammal Platypus, Bat, Mouse, Rabbit, Goat, Giraffe, Camel, Horse, Elephant, Mammoth
Walrus, Seal, Polar Bear, Bear, Panda, Cat, Tiger, Lion, Dog, Wolf
Cetacean Whale, Dolphin
Primate Monkey, Chimpanzee, Human


1.   The resources on this page are are organized by a classification scheme developed exclusively for Cosma.