Dolly the sheep, also known as the world's first mammal to be cloned from an adult somatic cell, died in 2003. She was just six years old and had succumbed to a progressive lung disease. She became the world's most famous sheep after she was controversially brought into the world by scientists at the Roslin Institute in Edinburgh, where she lived for her entire life. /

On 23 February 1997 Dolly the sheep, first cloned animal, was revealed by scientists in Edinburgh.

The world greeted this major scientific breakthrough with mixed feelings, discussing the huge ethical problems it exposed.

Watch original footage of Dolly's first press conference and the political response which greeted her at British Pathe

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