http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Astrobiologists have not yet found alien life on other planets. But the fossil record has evidence of aliens of another sort: the Ediacarans that lived on Earth millions of years ago. http://www.physorg.com/news180035158.html Space & Earth Mon, 14 Dec 2009 17:47:15 EST news180035158 Researchers are delving into abnormal gene function in mitochondria, structures within cells that power our lives. Mitochondria are the place where energy is generated from the most basic molecules of food. Because this function is essential to life, defects in mitochondria may affect a wide range of organ systems in humans and animals. http://www.physorg.com/news173012799.html Medicine & Health Thu, 24 Sep 2009 12:07:55 EST news173012799 Some algae have been hanging together rather than going it alone much longer than previously thought, according to new research. http://www.physorg.com/news154275197.html Biology Thu, 19 Feb 2009 14:13:43 EST news154275197 (PhysOrg.com) -- Even Charles Darwin was puzzled by the apparently sudden appearance in the fossil record of a great variety of multicellular creatures - a rapid blossoming known as the Cambrian explosion. Since then, the origin of animals was found to extend back earlier, through a period known as the Ediacarian. Now, evidence found by researchers at MIT, UC Riverside and other institutions shows that the first complex life forms may in fact have appeared much earlier still. http://www.physorg.com/news152976776.html Biology Wed, 04 Feb 2009 13:33:27 EST news152976776 Tropical oceans are known as the deserts of the sea. And yet this unlikely environment is the very place where the rich and fertile coral reef grows. Dutch researcher Jasper de Goeij investigated how caves in the coral reef ensure the reef's continued existence. Although sponges in these coral caves take up a lot of dissolved organic material, they scarcely grow. However, they do discard a lot of cells that in turn provide food for the organisms on the reef. http://www.physorg.com/news151074780.html Biology Tue, 13 Jan 2009 13:13:00 EST news151074780