Dolly, the world's first cloned sheepA group of scientists in Scotland successfully cloned a Finn Dorset sheep  from an adult cell. The sheep was named “Dolly”, apparently after Dolly Parton. The cloned sheep lived to have several healthy lambs, but died at the age of six from a lung disease.  (The natural lifespan of the average sheep is 8-10 years, but according to the Guinness Book of World Records, the oldest sheep lived to be 23. She was a Merino.)