Regenerates Entire Body


	Regenerates Entire Body

Sorgalim

3-6-2007 8:45 AM

246 views

tags:

salamanders, trick, tail, jellyfish, sponges

Sorgalim says:

Wonderful...

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<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/f998032b-a02f-421a-a63b-4bf413118073/A705BDD8-9493-4613-AA71-5F9CEF084343/" 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://www.newscientist.com/article/dn11311-sea-squirt-fragment-regenerates-entire-body.html" href="http://www.newscientist.com/article/dn11311-sea-squirt-fragment-regenerates-entire-body.html" style="font-size: 11px;">www.newscientist.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.newscientist.com/article/dn11311-sea-squirt-fragment-regenerates-entire-body.html">Salamanders have a cool trick if they lose their tail: they simply grow a new one. Yet they are some way off the top of the league when it comes to such running repairs. Some creatures can regenerate an entire body from mere fragments of the old one.</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://www.newscientist.com/article/dn11311-sea-squirt-fragment-regenerates-entire-body.html">It was thought that only simple beasts such as jellyfish and sponges have this talent. Now sea squirts (<I>Botrylloides leachi</I>), the closest invertebrate relative to vertebrates, have been found to do it, too.</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://www.newscientist.com/article/dn11311-sea-squirt-fragment-regenerates-entire-body.html">Out of 95 fragments they examined, 80 underwent whole body regeneration (WBR). Cells first grouped into hollow spheres, then cell layers in-folded and organs developed until after two weeks an adult sea squirt had grown, capable of sexual reproduction.</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://www.newscientist.com/article/dn11311-sea-squirt-fragment-regenerates-entire-body.html">To think that even one attached blood vessel survives storm damage and regenerates the entire colony,” says Reshef. “What an advantage this provides!”</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://www.newscientist.com/article/dn11311-sea-squirt-fragment-regenerates-entire-body.html"><div align="center"><img src="http://content9.clipmarks.com/blog_cache/www.newscientist.com/img/FD4A1331-152B-4442-BAC0-9AC985716E90" alt="The colonial urochordate <I>Botrylloides leachi</I> is one of the closest relatives to vertebrates (Image: Reshef et al/PLoS Biology)" /></div></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/A705BDD8-9493-4613-AA71-5F9CEF084343/blog/" title="blog or email this clip"><img src="http://content6.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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