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

Tree of Life
Plant Flower, Tree
Invertebrate Octopus, Ant, Bee, Butterfly, Spider, Lobster
Vertebrate Fish, Seahorse, Ray, Shark, Frog, Turtle, Tortoise, Dinosaur
Bird, Ostrich, Owl, Crow, Parrot
Mammal Bat, Rabbit, Giraffe, Camel, Horse, Elephant, Mammoth
Whale, Dolphin, Walrus, Seal, Polar Bear, Bear, Cat, Tiger, Lion, Dog, Wolf
Monkey, Chimpanzee, Human


These are organized by a classification scheme developed exclusively for Cosma. More…



Spiders (Harvard Subject Guides)


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

OneLook, Free Dictionary, Wiktionary, Urban Dictionary


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


Spider Glossary (Spiders from Europe, Australia and some immunology)


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

Encyclopædia Britannica





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



Orb-Weavers: Web Masters of the Spider World (Harvard Museum of Natural History)


WorldCat, Library of Congress, UPenn Online Books, Open Library



Under the spell of spiders (Smithsonian)
Spiders and Scorpions (Biology4Kids)


OER Commons: Open Educational Resources



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


Arachnology (British Arachnological Society), Science Daily, Phys.org, NPR Archives








Lucas the Spider (YouTube Channel)



OEDILF: The Omnificent English Dictionary In Limerick Form


Song Lyrics


Spiders in literature (Wikipedia)


Spider Mythology and Folklore (Patti Wigington, ThoughtCo)
Spiders in folklore and mythology (Wikipedia)



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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.

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    An investigational flu drug cures mice infected with the rare but deadly Bourbon virus, according to a new study. […]

  • First-ever spider glue genes sequenced, paving...
    on June 5, 2019 at 2:03 pm

    Researchers have determined the first-ever complete sequences of two spider glue genes. Spider glue is a modified form of spider silk that keeps a spider's prey stuck in its web, and it could have applications in organic pest control and beyond. […]

  • Wild boars, hunting dogs and hunters carry...
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    Rickettsia bacteria cause a number of human and animal infections, including Rocky Mountain spotted fever. Now, researchers have for the first time surveyed the prevalence of Rickettsia antibodies and Rickettsia-carrying ticks in wild boars, hunting dogs and hunters in Brazil. […]

  • Mites and ticks are close relatives, new research...
    on May 24, 2019 at 12:16 pm

    Scientists have reconstructed the evolutionary history of the chelicerates, the mega-diverse group of 110,000 arthropods that includes spiders, scorpions, mites and ticks. […]

  • Rocky mountain spotted fever risks examined
    on May 20, 2019 at 9:16 pm

    In Mexicali, Mexico, an uncontrolled epidemic of Rocky Mountain spotted fever, one of the deadliest tickborne diseases in the Americas, has affected more than 1,000 people since 2008. […]

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.

  • 56 new species of arachnids found in Western...
    on June 19, 2019 at 1:19 pm

    Researchers at The University of Western Australia and the Western Australian Museum have discovered 56 new species of arachnids, known as schizomids, in Western Australia's Pilbara region. […]

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    on June 18, 2019 at 12:23 pm

    Researchers have used computed tomography (CT) scanning to examine and reconstruct cranial fossils belonging to two extinct species of monkey, Caipora bambuiorum and Cartelles coimbrafilhoi. The fossils were found almost 30 years ago in a cave complex in Bahia, Brazil, located in the Caatinga, a semiarid biome that occupies part of Brazil's Northeast Region. […]

  • Overflowing Great Lakes pose new threat for...
    on June 17, 2019 at 5:58 am

    Peering through a spotting scope mounted on a tripod, researcher Alice Van Zoeren notices a piping plover skittering across a sandy, pebble-strewn Lake Michigan beach and hopping into a nest, swapping places with its mate. […]

  • Undocumented plant extinctions are a big problem...
    on June 13, 2019 at 2:00 pm

    A recent survey on the world's plants found a shocking number have gone extinct—571 since 1750. And this is likely to be a stark underestimate. Not all plants have been discovered, so it's likely other plants have gone extinct before researchers know they're at risk, or even know they exist. […]

  • Researchers discover meat-eating plant in...
    on June 8, 2019 at 7:55 am

    Call it the "Little Bog of Horrors." In what is believed to be a first for North America, biologists at the University of Guelph have discovered that meat-eating pitcher plants in Ontario's Algonquin Park wetlands consume not just bugs but also young salamanders. […]