On July 5, 1996, Dolly the sheep was born at the Roslin Institute in Scotland, becoming the first mammal cloned from an adult somatic cell. Her birth, announced to the world in February 1997, was a landmark scientific achievement led by scientists Ian Wilmut and Keith Campbell. Dolly was euthanized in 2003 after developing a progressive lung disease.
Dolly's creation proved that a specialized cell could be reprogrammed to create an entire organism, a major breakthrough in developmental biology. The technique used, somatic cell nuclear transfer (SCNT), involved transferring the nucleus from an adult cell into an unfertilized egg cell whose own nucleus had been removed.
The success sparked intense global debate on the ethics of cloning, leading many countries to ban human reproductive cloning. However, the research paved the way for advances in therapeutic cloning and stem cell research, with applications in regenerative medicine and the study of diseases.
Today, cloning technology is used in agriculture and biomedical research. Dolly's preserved remains are displayed at the National Museum of Scotland in Edinburgh, serving as a symbol of a pivotal moment in scientific history.
