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News stories tagged with "arachnid"

Spiral orb webs in a gorge in Karijini National Park, Australia. Photo: <a href="http://en.wikipedia.org/wiki/File:Spiral_Orb_Webs.jpg">Bjorn Christian Torrissen</a>, Creative Commons, some rights reserved
Spiral orb webs in a gorge in Karijini National Park, Australia. Photo: Bjorn Christian Torrissen, Creative Commons, some rights reserved

Natural Selections: Spider Webs

Spiders from big to tiny use their webs to snag and trap prey in fascinating ways. One spider even reels in tiny gnats that come to "roost" on the web. The silky constructions are wonders of engineering and construction. They're also highly specialized, spider to spider, as Martha Foley hears from Dr. Curt Stager in this week's edition of Natural Selections.  Go to full article
Crab Spider. Wikipedia Commons
Crab Spider. Wikipedia Commons

Natural Selections: Crab Spiders

Crab spiders are small, camouflaged arachnids that drink nectar from flowers. Martha Foley and Dr. Curt Stager discuss these "freeloaders."  Go to full article

Natural Selections: Camel Spiders

Like Martha Foley, you, too, may have seen a picture of this spider in your e-mail inbox. Is it real, or an imaginary creature come-to-life on the computer? Dr. Curt Stager gets the facts.  Go to full article

Natural Selections: Spider Webs Revisited, pt. 2

Spiders make all kinds of webs, from the front yard "hanky" covered with dew to the classic orb strung between twigs. But they also work in different ways--some emit pheremones that attract prey, some are spring-loaded to snap out at its victims. Martha Foley and Dr. Curt Stager talk about the tangled webs nature weaves.  Go to full article

Natural Selections: Spider Webs Revisited, pt. 1

Spiderwebs are one of the oddest substances in nature. Its molecular structure is a mixture of protein cystals and tangles that account for its unique combination of stretchiness and strength. Martha Foley and Dr. Curt Stager talk about spider silk.  Go to full article

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