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Latest Spider anatomy Stories

Cave Spider Has Most Stretchable Silk
2012-02-10 04:37:31

The egg sac silk of the cocoon stalk of the cave spider Meta menardi is the most stretchable egg sac silk yet tested, according to a study published Feb. 8 in the open access journal PLoS ONE. Spider silk is of broad interest for its strength, extensibility and toughness and possible applications for material science and biomechanical engineering, and there are many different types of silk from many different spider species. In the current study, the authors, led by Nicola Pugno of...

Scientists Search For Spider Web's  Strength
2012-02-02 09:38:05

Scientists report that they have solved the riddle of how spider webs can withstand different levels of stress - including hurricane force winds - without collapsing. Researchers, led by Markus Buehler of the Massachusetts Institute of Technology (MIT), used computer simulations to find out how silk structures respond to different levels of stress. What they found was quite remarkable. Reporting in the journal Nature, the researchers found that web durability does not only rely on silk...

Male Spiders May Break Off Genitals To Boost Paternity
2012-02-01 09:13:18

Perhaps it is not a thought that crosses the minds of the average male, but spiders have more to consider than most other creatures when it comes to choosing a mate. Biologists have long known that some male spiders sacrifice their genitals in the act of reproduction and that doing so leaves them sterile, but no one could adequately explain why this was so. An answer, however, may now be at hand following a series of meticulous experiments by Daiqin Li, a behavioral ecologist at the...

Super Silk From Genetically Modified Silk Worms
2012-01-04 08:13:26

US researchers say they have created genetically modified (GM) silkworms that spin silk far stronger and more elastic than the normal silk produced by the critter. Scientists from University of Wyoming, who published their research in the PNAS journal, say their ultimate goal is to produce silk from worms that has the toughness of spider silk. Spider silk, weight-for-weight, is stronger than steel. The team say the silkworm silk has a whole range of biomedical applications, including uses...

2011-12-13 01:06:50

If you're a red-headed guy with eight bulging eyes and a unibrow, size does indeed matter for getting the girl. More specifically, the bigger a male jumping spider's weapons appear to be, the more likely his rival will slink away without a fight, leaving the bigger guy a clear path to the waiting female. Duke University graduate student Cynthia Tedore, working with her dissertation advisor, visual ecologist Sönke Johnsen, wanted to know what visual signals matter most to...

2011-11-23 11:47:31

Researchers have shown for the first time how Golden orb web spiders (Nephila antipodiana) add a chemical to their web silk to repel invading ants. The finding adds a chemical defense to the impressive properties of spider silk, already known to be very strong, elastic and adhesive, and may provide new opportunities for pesticide design. The study was led by researchers from the National University of Singapore (NUS) and the University of Melbourne, and is published in the journal...

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2011-08-18 10:08:50

"The strength of spider dragline silk exceeds that of any material produced in laboratories, by far. All attempts to manufacture threads of similar strength have failed thus far," explains Professor Horst Kessler, Carl von Linde Professor at the Institute for Advanced Study at the TU Muenchen (TUM-IAS). In collaboration with the workgroup of Prof. Thomas Scheibel, who was a researcher at the TU Muenchen until 2007 and who now holds a chair of the Institute of Biomaterials at the Universitaet...

2011-06-05 00:02:41

A spectacular golden textile, conceived and created by Simon Peers and Nicholas Godley in Madagascar from silk thread collected from over one million Golden Orb spiders (Nephila madagascariensis), will go on exhibit at the Art Institute of Chicago, the country's second largest art museum. On special loan to the museum from Mssrs. Peers and Godley as part of the inaugural celebration of the museum's new galleries devoted to African art and Indian art of the Americas, the Spider Silk textile...

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2011-05-31 09:01:09

Decorative white silk crosses are an ingenious tactic used by orb-weaving spiders to protect their webs from damage, a new study from the University of Melbourne has revealed. The team, led by Dr Andre Walter and Professor Mark Elgar from the University of Melbourne's Department of Zoology, found that orb-weaving spiders respond to severe damage to their webs by building bigger silk crosses, but if the damage is mild they don't bother adding extra decoration. Professor Mark Elgar said web...

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2011-04-20 11:53:41

A fossilized spider, uncovered in inner Mongolia, is thought to be the largest ever spider fossil discovered. It has been so perfectly preserved from 165 million years ago that scientists have identified it down to the exact species and that is was an adult female, BBC News reports. This specimen was uncovered from at a site called Daohugou in Inner Mongolia, also home to areas filled with fossilized salamanders, small primitive mammals, insects and water crustaceans. This fossilized Golden...


Latest Spider anatomy Reference Libraries

Southern House Spider, Kukulcania hibernalis
2014-04-08 10:12:47

The Southern House Spider (Kukulcania hibernalis) is a species of large North American spider which display strong sexual dimorphism. The males may be mistaken for the Brown Recluse due to the similar coloration and body structure. However, compared to the Brown Recluse, male Southern House Spiders are usually larger in size, lack the distinctive violin shape on their cephalothorax, and have abnormally long and slender pedipalps. The females are a dark brown or black color and more compact....

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2009-06-26 17:05:26

The Triangulate Cobweb Spider (Steatoda triangulosa), also known as the Triangulate Bud Spider, is a species of common house spider that is found throughout the world. It is found along the coasts in North America, in southern Russia, in New Zealand, and in Europe. It is largely believed to be native to Eurasia. This spider is well known for the triangle-shaped pattern on the upper side of its abdomen. The adult female is 0.13 to 0.25 inches long. It has a brown-orange cephalothorax...

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2009-05-02 21:51:47

The Daddy-long-legs Spider (Pholcus phalangioides), also known as the Cellar Spider or Skull Spider, is a species of arachnid found in many parts of the world, but originally came from the tropics. They are commonly found living in caves, garages, ceilings of household rooms, and cellars. In Australia, it is considered a beneficial species as it kills and eats the venomous redback Spider. There is some confusion with the common name "daddy longlegs". This name is also applied to two other...

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Word of the Day
attercop
  • A spider.
  • Figuratively, a peevish, testy, ill-natured person.
'Attercop' comes from the Old English 'atorcoppe,' where 'atter' means 'poison, venom' and‎ 'cop' means 'spider.' 'Coppa' is a derivative of 'cop,' top, summit, round head, or 'copp,' cup, vessel, which refers to 'the supposed venomous properties of spiders,' says the OED. 'Copp' is still found in the word 'cobweb.'
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