Genetically Engineered Marathon Mice

The Associated Press
The creation of the so-called marathon mice, announced Monday, follows earlier genetic engineering work that created "Schwarzenegger mice," rodents that bulked up after getting injected with muscle-building genes.

The engineered mice racing away on their treadmills are bound to add to the furor over performance-enhancing substances, just as the world's best marathoners prepare for the Olympic event Sunday.


Please visit the link provided for the complete story.