<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/e32aa0dd-b8c9-48f3-86d4-b48a2fedd624/B0ACFB2D-D605-4D13-ABFA-7DC1094B1327/" 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://ask.yahoo.com/20070312.html" href="http://ask.yahoo.com/20070312.html" style="font-size: 11px;">ask.yahoo.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://ask.yahoo.com/20070312.html"><SMALL> Some fish drink the water they swim in, while others absorb it through osmosis. It just <A href="http://rochester.kidsoutandabout.com/main-columns/nature/fishdrinkwater.html">depends</A> on whether the fish lives in freshwater or saltwater. </SMALL></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://ask.yahoo.com/20070312.html">fish need to keep a certain concentration of salt in their bodies. Marine fish need to worry about preventing water loss, because they already get plenty of salt. They drink sea water, and their gills process the water but remove the salt. In fact, some saltwater fish lack properly functioning kidneys, in order to help avoid losing too much water.</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://ask.yahoo.com/20070312.html"><SMALL> Freshwater fish have the opposite problem: They need more salt. They absorb water through their skin and have effective ways of excreting excess liquid to maintain the salt they need.</SMALL></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://ask.yahoo.com/20070312.html"><SMALL> Some fish have developed the ability to exist comfortably in both freshwater and saltwater -- the <A href="http://www.wdfw.wa.gov/outreach/fishing/salmon.htm">salmon</A> and <A href="http://animaldiversity.ummz.umich.edu/site/accounts/information/Carcharhinus_leucas.html">bull shark</A> are notable examples. Bull sharks have been found far up the Mississippi and Amazon rivers, much to the surprise of people who believe sharks are found only in the salty, salty sea.</SMALL></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/B0ACFB2D-D605-4D13-ABFA-7DC1094B1327/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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