Dolly’s Cloned Relatives in Good Health
The cloned offspring of the first cloned animal are in good health after their eighth birthday, according to a new study. The four sheep, Debbie, Denise, Dianna and Daisy, are the offspring of Dolly the sheep, who, 20 years ago, became the first cloned animal. At age eight, they are roughly the same age as a human between 60 and 70 years old. Writing...