Could Rising Temperatures Mean Smaller Mammals? Scientists say in the ancient past, higher temperatures meant smaller mammals. Theyre studying how a brief, but dramatic climate change event affected body size. Its called the Paleocene-Eocene Thermal...
STEVE EMBER: Welcome to THIS IS AMERICA in VOA Special English. Im Steve Ember. FAITH LAPIDUS: And I'm Faith Lapidus. Americans who volunteer for the Peace Corps get a chance to help improve lives in developing countries. They also get a chance to le...
By Melinda Smith Washington, D.C. 19 February 2008 Congestive heart failure is diagnosed when a weakened heart fails to pump blood adequately and fluid builds up in the lungs and elsewhere in the body. But a diagnosis of congestive heart failure doe...