When the world's first cloned animal died in 2003 at the age of six, many suspected the cloning process put Dolly into an early grave. A new investigation of the cloned sheep's bones by scientists at the Universities of Glasgow and Nottingham suggests Dolly showed no signs of abnormal aging.
Dolly the cloned sheep did not age prematurely, suggesting cloning hazards have been exaggerated
November 23, 2017 9:40PM ET
