Bob Siederer
23 February 2026

Hello again Science Fans!
Let’s start with a little biological history. On this date in 1997, scientists in Scotland announced that they had successfully cloned a mammal for the first time. The animal was a sheep named Dolly, shown above with the embryologist who led the cloning research. Dolly was born on July 5, 1996, but public announcement wasn’t made until February 22, 1997. Dolly was cloned using a cell taken from a mammary gland of an adult sheep, and was named after country music singer Dolly Parton, proving the Scotts have a sense of humor. She went on to give birth to six normal lambs and was euthanized at the age of six due to lung disease unrelated to her cloning. Dolly’s preserved body is on exhibit at the National Museum of Scotland since 2003, the year of he








