Add Yahoo as a preferred source to see more of our stories on Google. Photo: Montana Mountain King; Montana Department of Fish, Wildlife, and Parks/A.P. Montana rancher Arthur "Jack" Schubarth, 81, ...

LONDON -- Dolly the cloned sheep was put to death Friday, after premature aging and disease marred her short existence and raised questions about the practicality of copying life. The decision to end ...

LONDON (AP) _ Dolly, the world's first cloned sheep, has developed arthritis at a relatively early age, renewing debate about whether cloned animals are susceptible to premature aging and health ...

LONDON(Reuters) - The heirs of Dolly the sheep are enjoying a healthy old age, proving cloned animals can live normal lives and offering reassurance to scientists hoping to use cloned cells in ...

It’s been 20 years since the world was first introduced to Dolly, the Finn Dorset sheep. It’s been 20 years since the world was first introduced to Dolly, the Finn Dorset sheep who was the first ...

LONDON - The world's first cloned sheep has developed arthritis at the relatively early age of 5½ years, scientists said Friday, stirring debate that the current cloning procedures might be flawed.

Montana rancher Arthur "Jack" Schubarth, 81, succeeded in cloning a wild Marco Polo argali sheep, the world's largest ovine species. That achievement cost him six months in jail. The U.S. Department ...