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Why Don't Spiders Stick to Their Webs?

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 Biology   |   Environmental   |   Science
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In this video:

When a spider makes an orb web, each line is actually comprised of at least two or more threads, and in fact, the supporting threads, radiating spokes and hub are all made from silk that is not sticky.

Want the text version?: http://www.todayifoundout.com/index.php/2014/08/spiders-webs-dont-get-stuck/

Sources:

http://www.conservationinstitute.org/10-of-the-worlds-largest-spiders/
http://www.dailymail.co.uk/sciencetech/article-1314864/Worlds-biggest-spider-web-stretches-80-feet-river.html
http://www.askabiologist.org.uk/answers/viewtopic.php?id=3890
http://texasento.net/Social_Spider.htm
http://nationalzoo.si.edu/animals/invertebrates/facts/factsheets/goliathbirdeatingtarantula.cfm
http://www.dailymail.co.uk/news/article-2569883/Man-dies-rare-SPIDER-BITE-fatality-clung-life-six-months.html
http://www.dailymail.co.uk/news/article-2017600/Man-dies-weeks-bitten-19-times-black-widow-spider.html
http://www.dailymail.co.uk/news/article-2017600/Man-dies-weeks-bitten-19-times-black-widow-spider.html
http://en.wikipedia.org/wiki/Portia_(genus)
http://www.stri.si.edu/sites/publications/PDFs/2012_driptip_Naturwiss.pdf
http://www.explorit.org/science/spider.html
http://www.cbc.ca/news/technology/spiders-teamed-up-to-create-giant-web-scientists-say-1.637889
http://www.cdc.gov/niosh/topics/spiders/
http://www.npr.org/2012/03/30/149698702/why-dont-spiders-get-stuck-in-their-webs
http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/art97b/benspid.html

Image Credit:

https://www.bigstockphoto.com/ru/image-191413324/stock-photo-spider-wraps-in-the-web-caught-flies%2C-green-line
https://www.bigstockphoto.com/ru/image-3450203/stock-photo-%D0%9F%D0%B0%D1%83%D1%82%D0%B8%D0%BD%D0%B0-2
https://www.bigstockphoto.com/ru/image-206710225/stock-photo-spider-s-web-close-up-in-the-park-in-nature
https://www.bigstockphoto.com/ru/image-207070600/stock-photo-the-spider-sits-on-a-web-on-the-hunt
https://www.bigstockphoto.com/ru/image-201347359/stock-photo-macro-image-of-a-hermit-spider-from-borneo
https://www.bigstockphoto.com/ru/image-146636765/stock-photo-spider-on-cobweb-with-water-droplets-close-up

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