http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. By virtue of having survived, all animals-from flies to man-share a common expertise. All can distinguish times of plenty from famine and adjust their metabolism or behavior accordingly. Failure to do so signals either extinction or disease. http://medicalxpress.com/news/2011-05-evolutionary-fat-metabolism-pathways.html Medical research Thu, 12 May 2011 12:29:48 EST news224422164