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News stories tagged with "predation"

Red blond male guppy. Photo: <a href="http://www.flickr.com/people/statico/">Ian Langworth</a>, cc <a href="http://creativecommons.org/licenses/by-nc-sa/2.0/deed.en">some rights reserved</a>
Red blond male guppy. Photo: Ian Langworth, cc some rights reserved

Natural Selections: Guppies, Bright and Drab

If male guppies use bright colors to attract mates, why are there still lots of drab guppies? Bright colors may attract the attention of more than just potential mates. Dr. Curt Stager and Martha Foley discuss the upside and downside of male flash.  Go to full article

Natural Selections: More on Spider Webs

There are a great variety of spider webs other than the traditional circle. Some spiders create webs that they drop on prey; one creates an attractive perch wire for gnats that it then reels in. And some spiders pretend to be caught in webs, in order to prey on their makers. Martha Foley and Curt Stager discuss the hunting techniques of arachnids.  Go to full article

Natural Selections: Northern Pike

The northern pike is a predator of Jaws-like efficiency. But as Dr. Curt Stager tells Martha Foley, even the most hapless prey have their moment. In dying, the fathead minnow gives off a lingering chemical warning to other small fry that "Here there be monsters."  Go to full article

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