<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/01183799-08fc-4492-b118-81ff2ee90af5/6EBF38F1-B5B8-4BD1-8D6C-FA3F0A07010D/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://animals.about.com/b/2008/01/15/marine-clam-wood-air.htm" href="http://animals.about.com/b/2008/01/15/marine-clam-wood-air.htm" style="font-size: 11px;">animals.about.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://animals.about.com/b/2008/01/15/marine-clam-wood-air.htm"><P>The shipworm, despite its name, is not a worm at all. Instead it is a type of marine clam that burrows into the wood of ships and piers where it wreaks havoc. The shipworm feeds on the wood, thus weakening the ships and piers it inhabits. But wood is a nutrient-poor food source which by itself does not provide the protein necessary to sustain the clam. To live, it relies on bacteria that live within its gills. These bacteria form a symbiotic partnership with the shipworm and enable the tiny clam to harvest nitrogen from the air and convert that nitrogen into much needed protein.</P></blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://animals.about.com/b/2008/01/15/marine-clam-wood-air.htm"><P>The protein-production methods employed by the shipworm represent a novel way for animals to feed. The closest comparison could be to the feeding methods of wood-eating termites. Like the shipworks, wood-eating termites supplement their diet of wood with nitrogen. But the termintes obtain their nitrogen from a collection of nitrogen-fixing bacteria that reside within the insect's gut.</P></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/6EBF38F1-B5B8-4BD1-8D6C-FA3F0A07010D/blog/" title="blog or email this clip"><img src="http://content8.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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