History of animal testing
In 1996 Dolly the sheep was born, the first mammal to be cloned from an adult cell. The process by which Dolly the sheep was cloned utilized a process known as nuclear transfer applied by lead scientist Ian Wilmut. Although other scientists were not immediately able to replicate the experiment, Wilmut argued that the experiment was indeed repeatable, given a timeframe of over a year.
Alan William Greenwood
Dr Alan William Greenwood CBE FRSE (29 June 1897 – 4 May 1981) was a Scottish zoologist and geneticist, who helped pave the way to creating Dolly the Sheep. He served as Director of the Poultry Research Centre from 1947 until 1962.