His role in cloning Dolly the sheep, the world's first clone from an adult cell, led to an OBE in 1999 and he has been elected to five scientific academies worldwide.

BBC: Dolly creator heads Scots honours

His role at the Roslin Institute in cloning Dolly the sheep, the world's first clone from an adult cell, led to an OBE in 1999 and he has been elected a fellow of five scientific academies worldwide.

BBC: Dolly the sheep creator knighted

They were able to get a clone in a stem-cell line in basically one of 17 eggs used.

NPR: Slate's Human Nature: S. Korean Stem Cell Advance

Instead, they want to use somatic cell nuclear transfer, the same process used to clone Dolly the sheep in 1997, to create embryonic stem cells.

FORBES: Cloning's High Cost

Finally, we assemble all the chunks in a human stem cell, which would enable you to finally create a Neanderthal clone.

FORBES: Is It Possible To Clone A Neanderthal?

Less successful was the cloning of the gaur, a species of ox found in south Asia, by researchers at Advanced Cell Technology, a biotech company in Worcester, Massachusetts: the clone died of infection days after birth.

ECONOMIST: Endangered species