In Muscle: In contrast to the adult mouse heart that heals by scar formation, the newborn heart heals by complete regeneration within three weeks after injury.

A regional group bringing together China, Russia and several central Asian countries has called for the withdrawal of American troops from bases in Uzbekistan and Kyrgyzstan. In this report from Washington, VOA Senior Correspondent André de Nesnera looks at the group known as the Shanghai Cooperation Organization. The Shanghai Cooperation Organization is a relatively new regional entity. It start ...Muscle