The scientific breakthrough, announced on this day in 1997, proved that geneticists could clone an adult mammal, giving rise to a new era of ethical debate and experimentation ...

The four sheep cloned from Dolly’s cell line did not suffer the same bad health as their sister, Dolly. Sheep live an average of 10 to 12 years, and these four — Daisy, Diana, Debbie, and ...

Dolly the sheep was the world’s first cloned mammal in 1996. Her death at a comparatively young age raised concerns that cloned animals may age more quickly, or make them less healthy ...

She said she was ‘flattered’ scientists at Edinburgh University chose to name Dolly the Sheep as a tribute to her. The ewe ...

cloned Dolly the sheep, announced on March 14 that it had created the first pigs cloned from adult cells. Independent DNA testing of blood from the five female piglets–Millie, Christa ...

On Tuesday scientists told the world that four clones of Dolly the sheep, known as the Nottingham Dollies, are alive and in good health. In fact, they're almost indistinguishable from non-cloned ...