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. In a vivid illustration of natural selection at work, scientists at Harvard University have found that deer mice living in Nebraska's Sand Hills quickly evolved lighter coloration after glaciers deposited sand dunes atop what had been much darker soil. The work is described this week in the journal Science. http://www.physorg.com/news170601400.html Biology Thu, 27 Aug 2009 14:17:01 EST news170601400 (AP) -- Hundreds of tiny footprints left by mammals some 190 million years ago have been found on a canyon wall in a remote part of Dinosaur National Monument, park officials said Thursday. http://www.physorg.com/news167636939.html Other Sciences Fri, 24 Jul 2009 07:20:01 EST news167636939 In January 2004, NASA landed two identical robotic rovers named Spirit and Opportunity on the surface of Mars. The twins were primed for a brief 3-month mission to tell us a story of water and possibly life itself in the planet's past. More than five years later, the dynamic duo are still roving the Red Planet, engaged in a saga of overachievement that has transformed Mars exploration. http://www.physorg.com/news157305969.html Space & Earth Thu, 26 Mar 2009 17:06:52 EST news157305969 At first, figuring out how pebble-sized rocks organize themselves in evenly-spaced patterns in sand seemed simple and even intuitive. But once Andrew Leier, an assistant geoscience professor at the U of C, started observing, he discovered that the most commonly held notions did not apply. http://www.physorg.com/news150556841.html Space & Earth Wed, 07 Jan 2009 13:20:41 EST news150556841