{"id":40095,"date":"2011-04-27T11:10:59","date_gmt":"2011-04-27T19:10:59","guid":{"rendered":"http:\/\/blogs.discovermagazine.com\/gnxp\/?p=11277"},"modified":"2011-04-27T11:10:59","modified_gmt":"2011-04-27T19:10:59","slug":"1-billion-year-old-freshwater-life","status":"publish","type":"post","link":"https:\/\/www.razib.com\/wordpress\/2011\/04\/27\/1-billion-year-old-freshwater-life\/","title":{"rendered":"1 billion year old freshwater life"},"content":{"rendered":"<p>There was a reference to complex pre-Cambrian life in a book I&#8217;m reading,\u00a0<a href=\"http:\/\/www.amazon.com\/exec\/obidos\/ASIN\/0810984652\/\/geneexpressio-20\">Kraken<\/a>, and it made me double-check Wikipedia&#8217;s <a href=\"http:\/\/en.wikipedia.org\/wiki\/Cambrian_explosion\">Cambrian explosion<\/a> entry. Lacking total clarity, I decided to read a new paper which was published in <em>Nature<\/em>, <a href=\"http:\/\/www.nature.com\/nature\/journal\/vaop\/ncurrent\/full\/nature09943.html\">Earth\u2019s earliest non-marine eukaryotes<\/a>. The Cambrian explosion is pegged to ~500 million years ago, but these data indicate a freshwater ecosystem which predates ~1 billion years before the present. Also, there was weird stuff in the discussion which startled me:<\/p>\n<blockquote>\n<p>&#8230;Early eukaryotes were clearly capable of diversifying within non-marine habitats, not just in marine settings as has been generally\u00a0assumed. <strong>This idea directly supports phylogenomic studies which find that the cyanobacteria evolved first in freshwater habitats and later\u00a0migrated into marine settings&#8230;.<\/strong><\/p>\n<\/blockquote>\n<p>Cyanobacteria are the ubiquitous blue-green algae which were&#8217;t familiar with.\u00a0<a href=\"http:\/\/www.newscientist.com\/article\/dn20373-ancient-lakes-show-when-eukaryotic-life-left-the-sea.html\">New Scientist<\/a> has some quotes from paleontologists who seem to think that this paper is credible. There&#8217;s a good and a bad to this. The good, I&#8217;ll have to read up on this area which I&#8217;m so fuzzy about in terms of details. The bad is that it slices my finite time pie even more.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>There was a reference to complex pre-Cambrian life in a book I&#8217;m reading,\u00a0Kraken, and it made me double-check Wikipedia&#8217;s Cambrian explosion entry. Lacking total clarity, I decided to read a new paper which was published in Nature, Earth<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1284,840,514],"tags":[],"class_list":["post-40095","post","type-post","status-publish","format-standard","hentry","category-cambrian-explosion","category-natural-history","category-paleontology"],"_links":{"self":[{"href":"https:\/\/www.razib.com\/wordpress\/wp-json\/wp\/v2\/posts\/40095","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.razib.com\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.razib.com\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.razib.com\/wordpress\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/www.razib.com\/wordpress\/wp-json\/wp\/v2\/comments?post=40095"}],"version-history":[{"count":2,"href":"https:\/\/www.razib.com\/wordpress\/wp-json\/wp\/v2\/posts\/40095\/revisions"}],"predecessor-version":[{"id":40166,"href":"https:\/\/www.razib.com\/wordpress\/wp-json\/wp\/v2\/posts\/40095\/revisions\/40166"}],"wp:attachment":[{"href":"https:\/\/www.razib.com\/wordpress\/wp-json\/wp\/v2\/media?parent=40095"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.razib.com\/wordpress\/wp-json\/wp\/v2\/categories?post=40095"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.razib.com\/wordpress\/wp-json\/wp\/v2\/tags?post=40095"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}