<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/4e6db855-e96b-4315-9ccd-8974d0beb6d8/8CB135EF-46FE-4226-B5D5-B8A1CAA40954/" 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.telegraph.co.uk/news/uknews/6181928/Life-existed-in-the-oceans-200-million-years-before-oxygen-appearerd-on-Earth.html" href="http://www.telegraph.co.uk/news/uknews/6181928/Life-existed-in-the-oceans-200-million-years-before-oxygen-appearerd-on-Earth.html" style="font-size: 11px;">www.telegraph.co.uk</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.telegraph.co.uk/news/uknews/6181928/Life-existed-in-the-oceans-200-million-years-before-oxygen-appearerd-on-Earth.html"><P>Life evolved at least 200 million years before oxygen began to build up in the atmosphere, a study has shown. </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://www.telegraph.co.uk/news/uknews/6181928/Life-existed-in-the-oceans-200-million-years-before-oxygen-appearerd-on-Earth.html"><P>During this period in its history, known as the Archaean, the Earth was covered by a poisonous smog of methane, ammonia and other toxic gases. </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://www.telegraph.co.uk/news/uknews/6181928/Life-existed-in-the-oceans-200-million-years-before-oxygen-appearerd-on-Earth.html"><P>Similar conditions exist today on Saturn's moon Titan. Life as we know it today could not have survived on the early Earth. </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://www.telegraph.co.uk/news/uknews/6181928/Life-existed-in-the-oceans-200-million-years-before-oxygen-appearerd-on-Earth.html"><P>The new study involved an analysis of ancient preserved seabed rocks from South Africa dating back two to three billion years. </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://www.telegraph.co.uk/news/uknews/6181928/Life-existed-in-the-oceans-200-million-years-before-oxygen-appearerd-on-Earth.html"><P>US scientists at Rutgers University in New Brunswick, New Jersey, found chemical evidence of nitrogen cycles that could not have taken place without the presence of free oxygen. </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://www.telegraph.co.uk/news/uknews/6181928/Life-existed-in-the-oceans-200-million-years-before-oxygen-appearerd-on-Earth.html"><P>Nitrogen cycles relate to the way living things obtain and use nitrogen to produce complex organic molecules. Evidence of nitrogen cycles provides a ''fingerprint'' of life. </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://www.telegraph.co.uk/news/uknews/6181928/Life-existed-in-the-oceans-200-million-years-before-oxygen-appearerd-on-Earth.html">The researchers, Dr Linda Godfrey and Dr Paul Falkowski, concluded that </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/8CB135EF-46FE-4226-B5D5-B8A1CAA40954/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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