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 the rat race of life, one thing is certain: there's no place like home. Now, a study just released in Molecular Ecology finds the same is true for rats. Although inner city rodents appear to roam freely, most form distinct neighborhoods where they spend the majority of their lives. http://www.physorg.com/news162553394.html Biology Tue, 26 May 2009 10:43:54 EST news162553394 Bacteria that can cause serious heart disease in humans are being spread by rat fleas, sparking concern that the infections could become a bigger problem in humans. Research published in the December issue of the Journal of Medical Microbiology suggests that brown rats, the biggest and most common rats in Europe, may now be carrying the bacteria. http://www.physorg.com/news146723086.html Biology Mon, 24 Nov 2008 04:24:46 EST news146723086