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 ...

Dolly’s claim to fame was that she was the very first mammal to be successfully cloned from a single adult sheep cell. Before this, scientists did not know cloning in this manner could result in ...

An Edinburgh firm – part of the institute that cloned Dolly the sheep – is to investigate if lab-grown food could be safe for ...

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 ...