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	<title>Comments on: Shake Your Jurassic Tail Feather</title>
	<atom:link href="http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/feed/" rel="self" type="application/rss+xml" />
	<link>http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/</link>
	<description>A blog about life, past and future. Written by DISCOVER contributing editor and columnist Carl Zimmer.</description>
	<lastBuildDate>Mon, 13 Feb 2012 19:00:24 +0000</lastBuildDate>
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		<title>By: Mauro</title>
		<link>http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/comment-page-1/#comment-63275</link>
		<dc:creator>Mauro</dc:creator>
		<pubDate>Tue, 04 Oct 2011 17:36:20 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-63275</guid>
		<description>I think it is safe to say that feathers were shaped by sexual seleccion, each generation of females choosing mates with longer and better formed feathers. Males had to display a ritual in which they jumped while waving the &quot;wings&quot; up and down to impress the females. The higher jumpers were selected and that&#039;s how they started to become more and more lighter and feathery. This is my main thing. But that hypothesis depends on when the microraptors come into the picture, since they represent a different branch of flight OR the origin of flight itself. They seem to be tree climbers and their feathers and bodies suggest pre-flight jumping from tree to tree. Does anyone know if the microraptor is found before archaeopteryx or after, or are they contemporary species? I need to know this... I can&#039;t find the exact thing...</description>
		<content:encoded><![CDATA[<p>I think it is safe to say that feathers were shaped by sexual seleccion, each generation of females choosing mates with longer and better formed feathers. Males had to display a ritual in which they jumped while waving the &#8220;wings&#8221; up and down to impress the females. The higher jumpers were selected and that&#8217;s how they started to become more and more lighter and feathery. This is my main thing. But that hypothesis depends on when the microraptors come into the picture, since they represent a different branch of flight OR the origin of flight itself. They seem to be tree climbers and their feathers and bodies suggest pre-flight jumping from tree to tree. Does anyone know if the microraptor is found before archaeopteryx or after, or are they contemporary species? I need to know this&#8230; I can&#8217;t find the exact thing&#8230;</p>
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		<title>By: Jurassic Dad &#124; The Loom &#124; Discover Magazine</title>
		<link>http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/comment-page-1/#comment-12872</link>
		<dc:creator>Jurassic Dad &#124; The Loom &#124; Discover Magazine</dc:creator>
		<pubDate>Thu, 18 Dec 2008 19:21:05 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-12872</guid>
		<description>[...] discovered in the process, such as flightless dinosaurs that probably used feathers to show off to the opposite sex. Feathered dinosaurs also laid eggs in nests and incubated them much as birds do today. And today [...]</description>
		<content:encoded><![CDATA[<p>[...] discovered in the process, such as flightless dinosaurs that probably used feathers to show off to the opposite sex. Feathered dinosaurs also laid eggs in nests and incubated them much as birds do today. And today [...]</p>
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		<title>By: Kilian Hekhuis</title>
		<link>http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/comment-page-1/#comment-11227</link>
		<dc:creator>Kilian Hekhuis</dc:creator>
		<pubDate>Thu, 30 Oct 2008 10:10:19 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-11227</guid>
		<description>Creationists engage their brain in ways that you and I cannot comprehend. They must be wired all backwards...</description>
		<content:encoded><![CDATA[<p>Creationists engage their brain in ways that you and I cannot comprehend. They must be wired all backwards&#8230;</p>
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		<title>By: rob</title>
		<link>http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/comment-page-1/#comment-10858</link>
		<dc:creator>rob</dc:creator>
		<pubDate>Fri, 24 Oct 2008 23:25:03 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-10858</guid>
		<description>sbgaetal

The photo you referenced was a completely different fossil, _Eoconfuciusornis_. Perhaps you should engage your brain before you post.</description>
		<content:encoded><![CDATA[<p>sbgaetal</p>
<p>The photo you referenced was a completely different fossil, _Eoconfuciusornis_. Perhaps you should engage your brain before you post.</p>
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		<title>By: Adam</title>
		<link>http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/comment-page-1/#comment-10854</link>
		<dc:creator>Adam</dc:creator>
		<pubDate>Fri, 24 Oct 2008 22:13:06 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-10854</guid>
		<description>sbgaetal

How was an old reference relevant to a new find???

Quit the posturing - it&#039;s embarassing! Let real paleontologists and paleoartists do their jobs!</description>
		<content:encoded><![CDATA[<p>sbgaetal</p>
<p>How was an old reference relevant to a new find???</p>
<p>Quit the posturing &#8211; it&#8217;s embarassing! Let real paleontologists and paleoartists do their jobs!</p>
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		<title>By: sbgaetal</title>
		<link>http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/comment-page-1/#comment-10827</link>
		<dc:creator>sbgaetal</dc:creator>
		<pubDate>Fri, 24 Oct 2008 14:21:09 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-10827</guid>
		<description>Do you think it is possible that the artist who created the picture being blasted all over the known world was a wack job? Have you seen the original fossil find?

http://news.nationalgeographic.com/news/bigphotos/95096577.html

How does one go from that to what you see all over? Blue tuft and ribbon appendage display &quot;feathers&quot; that have nothing to do with flight.

Get real folks. Here is a more level headed, referenced approach to the topic:

http://www.trueorigin.org/birdevo.asp#6

Warning: Engage your brains first before you read.</description>
		<content:encoded><![CDATA[<p>Do you think it is possible that the artist who created the picture being blasted all over the known world was a wack job? Have you seen the original fossil find?</p>
<p><a href="http://news.nationalgeographic.com/news/bigphotos/95096577.html" rel="nofollow">http://news.nationalgeographic.com/news/bigphotos/95096577.html</a></p>
<p>How does one go from that to what you see all over? Blue tuft and ribbon appendage display &#8220;feathers&#8221; that have nothing to do with flight.</p>
<p>Get real folks. Here is a more level headed, referenced approach to the topic:</p>
<p><a href="http://www.trueorigin.org/birdevo.asp#6" rel="nofollow">http://www.trueorigin.org/birdevo.asp#6</a></p>
<p>Warning: Engage your brains first before you read.</p>
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		<title>By: Greg</title>
		<link>http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/comment-page-1/#comment-10770</link>
		<dc:creator>Greg</dc:creator>
		<pubDate>Thu, 23 Oct 2008 20:17:13 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-10770</guid>
		<description>Do you think it would be possible for sexual selection to drive the development of feathers, but then adaptive advantages (like insulation) to take over?  Are there any known instances of sexual selection and natural selection feeding off of each other?  I&#039;m thinking cuttlefish in my head, but even in that case, it&#039;s more likely that their camouflage abilities started with natural, rather than sexual, selection.</description>
		<content:encoded><![CDATA[<p>Do you think it would be possible for sexual selection to drive the development of feathers, but then adaptive advantages (like insulation) to take over?  Are there any known instances of sexual selection and natural selection feeding off of each other?  I&#8217;m thinking cuttlefish in my head, but even in that case, it&#8217;s more likely that their camouflage abilities started with natural, rather than sexual, selection.</p>
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		<title>By: Stenfugle &#187; Ny dinosaur med mærkværdige halefjer</title>
		<link>http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/comment-page-1/#comment-10754</link>
		<dc:creator>Stenfugle &#187; Ny dinosaur med mærkværdige halefjer</dc:creator>
		<pubDate>Thu, 23 Oct 2008 14:22:25 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-10754</guid>
		<description>[...] har Darren Naish, Carl Zimmer og Live Science også kommenteret på det nye [...]</description>
		<content:encoded><![CDATA[<p>[...] har Darren Naish, Carl Zimmer og Live Science også kommenteret på det nye [...]</p>
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		<title>By: If You Want to Shake Your Jurassic Tail-Feather One More Time&#8230; &#124; The Loom &#124; Discover Magazine</title>
		<link>http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/comment-page-1/#comment-10748</link>
		<dc:creator>If You Want to Shake Your Jurassic Tail-Feather One More Time&#8230; &#124; The Loom &#124; Discover Magazine</dc:creator>
		<pubDate>Thu, 23 Oct 2008 13:19:53 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-10748</guid>
		<description>[...] Blogs / The Loom        &#171; Shake Your Jurassic Tail Feather [...]</description>
		<content:encoded><![CDATA[<p>[...] Blogs / The Loom        &laquo; Shake Your Jurassic Tail Feather [...]</p>
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		<title>By: 2008-10-23 - Epidexipteryx hui: le piume per “esibizionismo” e non per volare (2) &#171; PaleonewsITA</title>
		<link>http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/comment-page-1/#comment-10738</link>
		<dc:creator>2008-10-23 - Epidexipteryx hui: le piume per “esibizionismo” e non per volare (2) &#171; PaleonewsITA</dc:creator>
		<pubDate>Thu, 23 Oct 2008 09:17:25 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-10738</guid>
		<description>[...] Shake Your Jurassic Tail Feather Discover Magazine - 14 ore fa In recent years, dinosaurs have gotten awfully cute. They’re no longer Victorian lumps of saggy muscle. A lot of them are not even frightening. &#8230; [...]</description>
		<content:encoded><![CDATA[<p>[...] Shake Your Jurassic Tail Feather Discover Magazine - 14 ore fa In recent years, dinosaurs have gotten awfully cute. They’re no longer Victorian lumps of saggy muscle. A lot of them are not even frightening. &#8230; [...]</p>
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		<title>By: neil</title>
		<link>http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/comment-page-1/#comment-10727</link>
		<dc:creator>neil</dc:creator>
		<pubDate>Thu, 23 Oct 2008 06:14:44 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-10727</guid>
		<description>&quot;Obviously, Epidexipteryx was no flier itself. It didn’t have the right feathers on its arms to give it enough lift. Nor did the many other feathered dinosaurs scientists have unearthed over the past 15 years.&quot;

It&#039;s worth noting that many Mesozoic &quot;feathered dinosaurs&quot; actually &lt;i&gt;did&lt;/i&gt; possess flight feathers, it&#039;s just that most of these are considered &quot;birds&quot; and therefore (incorrectly) not &quot;dinosaurs.&quot; This is the kind of dichotomous taxonomy that creationists (and BANDers) love.  Among &quot;non-avian dinosaurs&quot; &lt;i&gt;Microraptor&lt;/i&gt; at least appears to have used it&#039;s feathers to generate lift.  

Likewise, elongate tail-feathers are actually surprisingly common among Mesozoic theropods including &lt;i&gt;Confuciusornis&lt;/i&gt; and some &lt;i&gt;Enantiornithines&lt;/i&gt; (usually considered &quot;birds&quot;) and to at least a minor degree the non-avian &lt;i&gt;Caudipteryx&lt;/i&gt;, though &lt;i&gt;Epidexipteryx&lt;/i&gt; puts all of these to shame.</description>
		<content:encoded><![CDATA[<p>&#8220;Obviously, Epidexipteryx was no flier itself. It didn’t have the right feathers on its arms to give it enough lift. Nor did the many other feathered dinosaurs scientists have unearthed over the past 15 years.&#8221;</p>
<p>It&#8217;s worth noting that many Mesozoic &#8220;feathered dinosaurs&#8221; actually <i>did</i> possess flight feathers, it&#8217;s just that most of these are considered &#8220;birds&#8221; and therefore (incorrectly) not &#8220;dinosaurs.&#8221; This is the kind of dichotomous taxonomy that creationists (and BANDers) love.  Among &#8220;non-avian dinosaurs&#8221; <i>Microraptor</i> at least appears to have used it&#8217;s feathers to generate lift.  </p>
<p>Likewise, elongate tail-feathers are actually surprisingly common among Mesozoic theropods including <i>Confuciusornis</i> and some <i>Enantiornithines</i> (usually considered &#8220;birds&#8221;) and to at least a minor degree the non-avian <i>Caudipteryx</i>, though <i>Epidexipteryx</i> puts all of these to shame.</p>
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		<title>By: Dave Hone</title>
		<link>http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/comment-page-1/#comment-10715</link>
		<dc:creator>Dave Hone</dc:creator>
		<pubDate>Thu, 23 Oct 2008 02:10:21 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/loom/2008/10/22/shake-your-jurassic-tail-feather/#comment-10715</guid>
		<description>Hi Carl, no italicisation of the latin binomials, for shame! More seriously, just to wade in here with some shameless self promotion, a post of this beastie will be up on my blog today by one of the original authors if your readers are looking for soem more information.  Cheers, Dave</description>
		<content:encoded><![CDATA[<p>Hi Carl, no italicisation of the latin binomials, for shame! More seriously, just to wade in here with some shameless self promotion, a post of this beastie will be up on my blog today by one of the original authors if your readers are looking for soem more information.  Cheers, Dave</p>
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