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	<title>Comments on: Huge Silicate Sponge Spicules and the Evolution of Calcification</title>
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		<title>By: Carnival of Evolution #24 &#171; Culturing Science &#8211; biology as relevant to us earthly beings</title>
		<link>http://deepseanews.com/2010/05/huge-silicate-sponge-spicules-and-the-evolution-of-calcification/comment-page-1/#comment-15165</link>
		<dc:creator>Carnival of Evolution #24 &#171; Culturing Science &#8211; biology as relevant to us earthly beings</dc:creator>
		<pubDate>Tue, 15 Jun 2010 14:15:43 +0000</pubDate>
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		<description>[...] greats posts up: the evolution of the silica skeletons of glass sponges at Deep Sea News; how human&#8217;s evolution to fill a &#8220;cognitive niche&#8221; encouraged us to become [...]</description>
		<content:encoded><![CDATA[<p>[...] greats posts up: the evolution of the silica skeletons of glass sponges at Deep Sea News; how human&#8217;s evolution to fill a &#8220;cognitive niche&#8221; encouraged us to become [...]</p>
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		<title>By: Circus of the Oiled Spineless #51 &#124; Deep Sea News</title>
		<link>http://deepseanews.com/2010/05/huge-silicate-sponge-spicules-and-the-evolution-of-calcification/comment-page-1/#comment-14110</link>
		<dc:creator>Circus of the Oiled Spineless #51 &#124; Deep Sea News</dc:creator>
		<pubDate>Thu, 03 Jun 2010 13:37:29 +0000</pubDate>
		<guid isPermaLink="false">http://deepseanews.com/?p=8413#comment-14110</guid>
		<description>[...] own contribution is on the evolution of sponge spicules, those strange silaceous and carbonae-o-liscious biomaterials that hold up the consortia of cells [...]</description>
		<content:encoded><![CDATA[<p>[...] own contribution is on the evolution of sponge spicules, those strange silaceous and carbonae-o-liscious biomaterials that hold up the consortia of cells [...]</p>
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		<title>By: Lancashire MCS Blog &#187; Blog Archive &#187; Science roundup 31st May 2010</title>
		<link>http://deepseanews.com/2010/05/huge-silicate-sponge-spicules-and-the-evolution-of-calcification/comment-page-1/#comment-13924</link>
		<dc:creator>Lancashire MCS Blog &#187; Blog Archive &#187; Science roundup 31st May 2010</dc:creator>
		<pubDate>Mon, 31 May 2010 17:44:37 +0000</pubDate>
		<guid isPermaLink="false">http://deepseanews.com/?p=8413#comment-13924</guid>
		<description>[...] Why we have bones, and not silicate spicules: Sponges are very simple multicellular animals. So simple, in fact, that I am told that you can liquidise many of them, and the cells will slowly go back together again afterwards. For structure, and some measure of protection, sponges secrete silica or calcium carbonate &#8217;spicules&#8217; (often quite intricately shaped, the microscopic examination of these structures is an important aid for their identification). Deposition of carbonate minerals &#8211; used to make the bones of many animals (including ourselves) &#8211; relies on &#945;Carbonic Anhydrase enzymes, which have been shown to appear first in the sponges about 530 MYA. From Deep Sea News, May 27 2010. [...]</description>
		<content:encoded><![CDATA[<p>[...] Why we have bones, and not silicate spicules: Sponges are very simple multicellular animals. So simple, in fact, that I am told that you can liquidise many of them, and the cells will slowly go back together again afterwards. For structure, and some measure of protection, sponges secrete silica or calcium carbonate &#8217;spicules&#8217; (often quite intricately shaped, the microscopic examination of these structures is an important aid for their identification). Deposition of carbonate minerals &#8211; used to make the bones of many animals (including ourselves) &#8211; relies on &alpha;Carbonic Anhydrase enzymes, which have been shown to appear first in the sponges about 530 MYA. From Deep Sea News, May 27 2010. [...]</p>
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		<title>By: Tweets that mention Huge Silicate Sponge Spicules and the Evolution of Calcification &#124; Deep Sea News -- Topsy.com</title>
		<link>http://deepseanews.com/2010/05/huge-silicate-sponge-spicules-and-the-evolution-of-calcification/comment-page-1/#comment-13559</link>
		<dc:creator>Tweets that mention Huge Silicate Sponge Spicules and the Evolution of Calcification &#124; Deep Sea News -- Topsy.com</dc:creator>
		<pubDate>Thu, 27 May 2010 13:29:49 +0000</pubDate>
		<guid isPermaLink="false">http://deepseanews.com/?p=8413#comment-13559</guid>
		<description>[...] This post was mentioned on Twitter by ResearchBlogging.org, Chris Rowan. Chris Rowan said: Huge Silicate Sponge Spicules and the Evolution of Calcification http://bit.ly/9v9CMY [...]</description>
		<content:encoded><![CDATA[<p>[...] This post was mentioned on Twitter by ResearchBlogging.org, Chris Rowan. Chris Rowan said: Huge Silicate Sponge Spicules and the Evolution of Calcification <a href="http://bit.ly/9v9CMY" rel="nofollow">http://bit.ly/9v9CMY</a> [...]</p>
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