Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Spider> ?p ?o }
- Spider abstract "Spiders (order Araneae) 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. As of September 2015, at least 45,709 spider species, and 114 families have been recorded by taxonomists. However, there has been dissension within the scientific community as to how all these families should be classified, as evidenced by the over 20 different classifications that have been proposed since 1900.Anatomically, spiders differ from other arthropods in that the usual body segments are fused into two tagmata, the cephalothorax and abdomen, and joined by a small, cylindrical pedicel. Unlike insects, spiders do not have antennae. In all except the most primitive group, the Mesothelae, spiders have the most centralized nervous systems of all arthropods, as all their ganglia are fused into one mass in the cephalothorax. Unlike most arthropods, spiders have no extensor muscles in their limbs and instead extend them by hydraulic pressure.Their abdomens bear appendages that have been modified into spinnerets that extrude silk from up to six types of silk glands within their abdomen. Spider webs vary widely in size, shape and the amount of sticky thread used. It now appears that the spiral orb web may be one of the earliest forms, and spiders that produce tangled cobwebs are more abundant and diverse than orb-web spiders. Spider-like arachnids with silk-producing spigots appeared in the Devonian period about 386 million years ago, but these animals apparently lacked spinnerets. True spiders have been found in Carboniferous rocks from 318 to 299 million years ago, and are very similar to the most primitive surviving suborder, the Mesothelae. The main groups of modern spiders, Mygalomorphae and Araneomorphae, first appeared in the Triassic period, before 200 million years ago.A herbivorous species, Bagheera kiplingi, was described in 2008, but all other known species are predators, mostly preying on insects and on other spiders, although a few large species also take birds and lizards. Spiders use a wide range of strategies to capture prey: trapping it in sticky webs, lassoing it with sticky bolas, mimicking the prey to avoid detection, or running it down. Most detect prey mainly by sensing vibrations, but the active hunters have acute vision, and hunters of the genus Portia show signs of intelligence in their choice of tactics and ability to develop new ones. Spiders' guts are too narrow to take solids, and they liquidize their food by flooding it with digestive enzymes and grinding it with the bases of their pedipalps, as they do not have true jaws.Male spiders identify themselves by a variety of complex courtship rituals to avoid being eaten by the females. Males of most species survive a few matings, limited mainly by their short life spans. Females weave silk egg-cases, each of which may contain hundreds of eggs. Females of many species care for their young, for example by carrying them around or by sharing food with them. A minority of species are social, building communal webs that may house anywhere from a few to 50,000 individuals. Social behavior ranges from precarious toleration, as in the widow spiders, to co-operative hunting and food-sharing. Although most spiders live for at most two years, tarantulas and other mygalomorph spiders can live up to 25 years in captivity.While the venom of a few species is dangerous to humans, scientists are now researching the use of spider venom in medicine and as non-polluting pesticides. Spider silk provides a combination of lightness, strength and elasticity that is superior to that of synthetic materials, and spider silk genes have been inserted into mammals and plants to see if these can be used as silk factories. As a result of their wide range of behaviors, spiders have become common symbols in art and mythology symbolizing various combinations of patience, cruelty and creative powers. An abnormal fear of spiders is called arachnophobia.".
- Spider thumbnail Spiders_Diversity.jpg?width=300.
- Spider wikiPageExternalLink spiders.
- Spider wikiPageExternalLink 070305fa_fact_bilger.
- Spider wikiPageExternalLink bix-idx?type=simple&c=bix&sid=54d8a20e4f1eb5f2de074bad4caba7ae&Submit=search&sort=title&q1=spiders&rgn1=Entire+record.
- Spider wikiPageExternalLink index.php?id=2343&L=1.
- Spider wikiPageExternalLink jump.html.
- Spider wikiPageID "28329803".
- Spider wikiPageLength "96023".
- Spider wikiPageOutDegree "500".
- Spider wikiPageRevisionID "706103522".
- Spider wikiPageWikiLink Abdomen.
- Spider wikiPageWikiLink Acacia.
- Spider wikiPageWikiLink Acceleration.
- Spider wikiPageWikiLink Adaptive_radiation.
- Spider wikiPageWikiLink Agelena_consociata.
- Spider wikiPageWikiLink Agelenidae.
- Spider wikiPageWikiLink Alzheimers_disease.
- Spider wikiPageWikiLink Amber.
- Spider wikiPageWikiLink Amblypygi.
- Spider wikiPageWikiLink Ambush_predator.
- Spider wikiPageWikiLink Amino_acid.
- Spider wikiPageWikiLink Ammonia.
- Spider wikiPageWikiLink Amyciaea.
- Spider wikiPageWikiLink Anatomical_terminology.
- Spider wikiPageWikiLink Anatomical_terms_of_location.
- Spider wikiPageWikiLink Anatomical_terms_of_motion.
- Spider wikiPageWikiLink Anelosimus.
- Spider wikiPageWikiLink Anelosimus_eximius.
- Spider wikiPageWikiLink Ant.
- Spider wikiPageWikiLink Ant_mimicry.
- Spider wikiPageWikiLink Antarctica.
- Spider wikiPageWikiLink Antenna_(biology).
- Spider wikiPageWikiLink Anterior_median_line.
- Spider wikiPageWikiLink Anus.
- Spider wikiPageWikiLink Anyphaenidae.
- Spider wikiPageWikiLink Aphid.
- Spider wikiPageWikiLink Aposematism.
- Spider wikiPageWikiLink Appendage.
- Spider wikiPageWikiLink Arachnid.
- Spider wikiPageWikiLink Arachnology.
- Spider wikiPageWikiLink Arachnophobia.
- Spider wikiPageWikiLink Araneomorphae.
- Spider wikiPageWikiLink Araneus_diadematus.
- Spider wikiPageWikiLink Argiope_(spider).
- Spider wikiPageWikiLink Argyrodes.
- Spider wikiPageWikiLink Artery.
- Spider wikiPageWikiLink Arthrolycosidae.
- Spider wikiPageWikiLink Arthromygalidae.
- Spider wikiPageWikiLink Arthropod.
- Spider wikiPageWikiLink Arthropod_cuticle.
- Spider wikiPageWikiLink Arthropod_leg.
- Spider wikiPageWikiLink Attercopus.
- Spider wikiPageWikiLink Australian_funnel-web_spider.
- Spider wikiPageWikiLink Bagheera_kiplingi.
- Spider wikiPageWikiLink Banana.
- Spider wikiPageWikiLink Bee.
- Spider wikiPageWikiLink Bilin_(biochemistry).
- Spider wikiPageWikiLink BioSteel.
- Spider wikiPageWikiLink Bird.
- Spider wikiPageWikiLink Blood.
- Spider wikiPageWikiLink Bolas.
- Spider wikiPageWikiLink Bolas_spider.
- Spider wikiPageWikiLink Book_lung.
- Spider wikiPageWikiLink Brachypelma_vagans.
- Spider wikiPageWikiLink Brazilian_wandering_spider.
- Spider wikiPageWikiLink Brill_Publishers.
- Spider wikiPageWikiLink Calamistrum.
- Spider wikiPageWikiLink Cambodia.
- Spider wikiPageWikiLink Camouflage.
- Spider wikiPageWikiLink Carapace.
- Spider wikiPageWikiLink Carboniferous.
- Spider wikiPageWikiLink Cardiac_arrhythmia.
- Spider wikiPageWikiLink Carl_Alexander_Clerck.
- Spider wikiPageWikiLink Carotenoid.
- Spider wikiPageWikiLink Cartwheel_(gymnastics).
- Spider wikiPageWikiLink Category:Articles_containing_video_clips.
- Spider wikiPageWikiLink Category:Extant_Pennsylvanian_first_appearances.
- Spider wikiPageWikiLink Category:Spiders.
- Spider wikiPageWikiLink Cecum.
- Spider wikiPageWikiLink Cellulose.
- Spider wikiPageWikiLink Central_nervous_system.
- Spider wikiPageWikiLink Cephalothorax.
- Spider wikiPageWikiLink Chelicerae.
- Spider wikiPageWikiLink Chelicerata.
- Spider wikiPageWikiLink China.
- Spider wikiPageWikiLink Chitin.
- Spider wikiPageWikiLink Chol_people.
- Spider wikiPageWikiLink Circulatory_system.
- Spider wikiPageWikiLink Clade.
- Spider wikiPageWikiLink Cladogram.
- Spider wikiPageWikiLink Cloaca.
- Spider wikiPageWikiLink Coelom.
- Spider wikiPageWikiLink Collagen.
- Spider wikiPageWikiLink Convergent_evolution.
- Spider wikiPageWikiLink Corinnidae.
- Spider wikiPageWikiLink Cotton_bollworm.
- Spider wikiPageWikiLink Courtship.
- Spider wikiPageWikiLink Crane_fly.
- Spider wikiPageWikiLink Cretaceous.