<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/38b54831-5356-4c6e-a84d-95922f109901/DB2BEC7A-E9C4-4765-B678-63573EE2C920/" 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.time.com/time/health/article/0,8599,1930885,00.html" href="http://www.time.com/time/health/article/0,8599,1930885,00.html" style="font-size: 11px;">www.time.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.time.com/time/health/article/0,8599,1930885,00.html"><H1>When Is a Species Endangered?</H1></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.time.com/time/health/article/0,8599,1930885,00.html"><DIV class="photoBkt"> <DIV class="tout"> <DIV class="imgcont"><IMG width="307" height="200" title="An endangered Sumatran tiger wades through a stream" alt="An endangered Sumatran tiger wades through a stream" src="http://img.timeinc.net/time/daily/2009/0910/conservation_1016.jpg" /></DIV> <DIV class="caption">An endangered Sumatran tiger wades through a stream</DIV> <DIV class="credit">Tom Brakefield / Getty</DIV> </DIV> </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://www.time.com/time/health/article/0,8599,1930885,00.html"><P>The planet is in the middle of an extinction crisis, the sixth great wave in its history. But unlike major extinction events of the past — like the Permian-Triassic event 250 million years ago, in which 70% of all terrestrial species were wiped out, probably because of an asteroid impact or a similar natural disaster — this time human beings are the cause. Hard numbers are difficult to find, but many scientists believe Earth's species are going extinct at a rate that is up to 1,000 times higher than before human beings came on the scene. <SPAN class="see"><A target="_blank" href="http://www.time.com/time/interactive/0,31813,1888583,00.html">(See how animals are under siege.)</A></SPAN></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/DB2BEC7A-E9C4-4765-B678-63573EE2C920/blog/" title="blog or email this clip"><img src="http://content7.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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