Navigation Links
Why spiders do not stick to their own sticky web sites
Date:3/1/2012

Researchers at the Smithsonian Tropical Research Institute and University of Costa Rica asked why spiders do not stick to their own sticky webs. Repeating old, widely quoted but poorly documented studies with modern equipment and techniques, they discovered that spiders' legs are protected by a covering of branching hairs and by a non-stick chemical coating. Their results are published online in the journal, Naturwissenschaften.

They also observed that spiders carefully move their legs in ways that minimize adhesive forces as they push against their sticky silk lines hundreds to thousands of times during the construction of each orb.

The web-weaving behavior of two tropical species, Nephila clavipes and Gasteracantha cancriformis, was recorded with a video camera equipped with close-up lenses. Another video camera coupled with a dissecting microscope helped to determine that individual droplets of sticky glue slide along the leg's bristly hair, and to estimate the forces of adhesion to the web. By washing spider legs with hexane and water, they showed that spiders' legs adhered more tenaciously when the non-stick coating was removed.


'/>"/>

Contact: Beth King
kingb@si.edu
202-633-4700 x28216
Smithsonian Tropical Research Institute
Source:Eurekalert  

Page: 1

Related biology news :

1. New research shows how male spiders use eavesdropping to one-up their rivals
2. Bigger, scarier weapons help spiders get the girl
3. Why spiders dont drop off of their threads
4. Scientists crack the spiders web code
5. Spiders suffer from human impact
6. Mysterious purse-web spiders rediscovered and photographed in South Africa
7. When food is scarce, hungry female spiders alter mating preferences
8. Spiders adjust courtship signals for maximum effect
9. Dracula orchids and goblin spiders
10. Study: Crickets forewarn unborn babies about spiders
11. Male Australian redback spiders employ courtship strategies to preserve their life
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Why spiders do not stick to their own sticky web sites
(Date:12/7/2016)... According to a new market research report "Emotion Detection and Recognition Market ... Application Area, End User, And Region - Global Forecast to 2021", published by ... 2016 to USD 36.07 Billion by 2021, at a Compound Annual Growth Rate ... ... MarketsandMarkets Logo ...
(Date:12/6/2016)... -- Valencell , the leading innovator in performance ... third consecutive year of triple digit growth for its ... a 360 percent increase in companies who have acquired ... by sales of its wrist and ear Benchmark™ sensor ... for hearables for fitness and healthcare applications. ...
(Date:11/30/2016)... 30, 2016 Not many of us realize that we spend ? of ... we need to do it well. Inadequate sleep levels have been found to lead ... diabetes, and even cancer. Maybe now is the best time to rethink ... them to manage their sleep quality? Continue Reading ... ...
Breaking Biology News(10 mins):
(Date:12/8/2016)... December 8, 2016 AskLinkerReports.com has published ... titled Global Amyloglucosidase Industry 2016 Market Research Report. From a ... industry chain overview are all covered in the report. This ... investment return analysis of the Amyloglucosidase industry. ... , , ...
(Date:12/8/2016)... 8, 2016  Renova™ Therapeutics, a biotechnology company ... and type 2 diabetes, announced that it has ... virus (AAV) vector developed in the laboratory of ... Stanford University. The company plans to use this ... product pipeline. "Early research has ...
(Date:12/8/2016)... ... December 08, 2016 , ... The ability ... optogenetics — is key to exciting advances in the study and mapping of ... projected via free-space optics stimulates small, transparent organisms and excites neurons within superficial ...
(Date:12/8/2016)... 2016 Oxford Gene ... seine Palette an anpassbaren SureSeq™ NGS-Panels mit dem ... das ein schnelles und kostengünstiges Studium der Varianten ... eine Erkennung von Einzel-Nukleotid-Variationen (Single Nucleotide Variation, SNV) ... kleinen Panel und ermöglicht eine individuelle Anpassung durch ...
Breaking Biology Technology: