Dolly (sheep)
Dolly (5 July 1996 – 14 February 2003) was a female domestic sheep, and the first mammal cloned from an adult somatic cell, using the process of nuclear transfer.
Robert Briggs (scientist)
Robert Briggs (December 10, 1911 — March 4, 1983) was a scientist who, in 1952, together with Thomas Joseph King, cloned a frog by nuclear transfer of embryonic cells. The same technique, using somatic cells, was later used to create Dolly the Sheep. Their experiment was the first successful nuclear transplantation performed in metazoans. He was a scientist at the Institute for Cancer Research of the Lankenau Hospital Research Institute (now known as the Lankenau Institute for Medical Research) when the work was conducted.