<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://www.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/1c2a1f2d-5700-4abe-a3e5-c8911d12830b/9E9C61D4-63AF-44B3-B307-350CD6285B28/" 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://dsc.discovery.com/news/2007/07/31/sharkblood_ani.html?category=animals&guid=20070731093000" href="http://dsc.discovery.com/news/2007/07/31/sharkblood_ani.html?category=animals&guid=20070731093000" style="font-size: 11px;">dsc.discovery.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://dsc.discovery.com/news/2007/07/31/sharkblood_ani.html?category=animals&guid=20070731093000"><DIV><A href="http://dsc.discovery.com/news/2007/07/31/sharkblood_ani_zoom0.html?category=animals&guid=20070731093000"><IMG width="175" height="175" border="0" alt="Shifting Water, Shifting Blood" src="http://dsc.discovery.com/news/2007/07/31/gallery/sharkblood_goto.jpg" /></A></DIV> <DIV class="caption shim5"><B>Shifting Water, Shifting Blood</B></DIV></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://dsc.discovery.com/news/2007/07/31/sharkblood_ani.html?category=animals&guid=20070731093000"><B>July 31, 2007</B> — The amount of blood in a shark depends upon the saltiness of the water in which the shark is immersed, according to research that found many sharks must continuously regulate their blood and other bodily fluid volumes, since water salinity may change.</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://dsc.discovery.com/news/2007/07/31/sharkblood_ani.html?category=animals&guid=20070731093000">The paper, which has been accepted for publication in the journal <I>Comparative Biochemistry and Physiology</I>, provides one of the most extensive looks at this phenomenon, and points out how massive ice melt triggered by warming could spell trouble for the animals.</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://dsc.discovery.com/news/2007/07/31/sharkblood_ani.html?category=animals&guid=20070731093000">Although sharks absorb water through their gills, they also may drink seawater and expel watery waste-shark urine-to keep their systems in sync with their environments.</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://dsc.discovery.com/news/2007/07/31/sharkblood_ani.html?category=animals&guid=20070731093000">"Body fluid regulation is important for sharks in the same way it is important for humans," lead author Gary Anderson told Discovery News.</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/9E9C61D4-63AF-44B3-B307-350CD6285B28/blog/" title="blog or email this clip"><img src="http://content9.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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