Dolly the sheep

who is Dolly?Born in Scotland, United KingdomDolly was a female domestic sheep, and the first mammal to be cloned from an adult somatic cell, using the process of nuclear transfer.

Dolly The Sheep

Caitlin Cameron

Most famous cloning

What happened to Dolly?Dolly lived a pampered existence at the Roslin Institute. She mated and produced normal offspring in the normal way, showing that such cloned animals can reproduce. Born on 5 July 1996, she was euthanased on 14 February 2003, aged six and a half. Sheep can live to age 11 or 12, but Dolly suffered from arthritis in a hind leg joint and from sheep pulmonary adenomatosis, a virus-induced lung tumour that is common among sheep which are raised indoors.

July 5th 1996 - February 14th 2003

Animal cloning from an adult cell is much more difficult than from an embryonic cell. So when scientists working at the Roslin Institute in Scotland produced Dolly, the only lamb born from 277 attempts, it was a major news story around the world.