Dolly (sheep)
Dolly was born on 5 July 1996 and had three mothers: one provided the egg, another the DNA, and a third carried the cloned embryo to term. She was created using the technique of somatic cell nuclear transfer, where the cell nucleus from an adult cell is transferred into an unfertilized oocyte (developing egg cell) that has had its cell nucleus removed. The hybrid cell is then stimulated to divide by an electric shock, and when it develops into a blastocyst it is implanted in a surrogate mother. Dolly was the first clone produced from a cell taken from an adult mammal. The production of Dolly showed that genes in the nucleus of such a mature differentiated somatic cell are still capable of reverting to an embryonic totipotent state, creating a cell that can then go on to develop into any part of an animal. Dolly's existence was announced to the public on 22 February 1997. It gained much attention in the media. A commercial with Scottish scientists playing with sheep was aired on TV, and a special report in "Time" magazine featured Dolly the sheep. "Science" featured Dolly as the breakthrough of the year. Even though Dolly was not the first animal cloned, she received media attention because she was the first cloned from an adult cell.
Don DaGradi
Don DaGradi (March 1, 1911 – August 4, 1991) was a Disney writer who started out as a layout artist on 1940s cartoons including "Der Fuehrer's Face" in 1943. He eventually moved into animated features with the film "Lady and the Tramp" in 1955. He also worked as a color and styling or sequence consultant on many other motion pictures for Disney. His greatest achievement was for his visual screenplay for "Mary Poppins" in 1964 for which he shared an Oscar nomination for Best Adapted Screenplay with Bill Walsh. Don DaGradi died August 4, 1991, in Friday Harbor, Washington. He was named a Disney Legend posthumously, only months after his death.