Cloned and genetically modified animals are jumping the lab and entering the black market, possibly forever altering our ecosystems.

The Marco Polo argali sheep is the biggest sheep in the world. These creatures, native to Central Asia, can weigh up to 300 pounds, and they sport on their heads massive, heavy spiraling horns that ...

Sir Ian Wilmut, the scientist who led the cloning of Dolly the sheep, has died at the age of 79. Wilmut led the University of Edinburgh team that successfully created Dolly, the first mammal to be ...

A Montana rancher was charged with illegally selling offspring from a cloned sheep across state lines. The retail value of the transported animals is $250,000 to $550,000, per court documents. The ...

If you were old enough to watch the news or read the paper back in the late 1990s, you very likely remember Dolly, the cloned sheep. Born in 1996, the researchers responsible for cloning her kept it ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. LONDON (AP) — Ian Wilmut, the cloning ...

LONDON(Reuters) - The heirs of Dolly the sheep are enjoying a healthy old age, proving cloned animals can live normal lives and offering reassurance to scientists hoping to use cloned cells in ...

LONDON — Ian Wilmut, the cloning pioneer whose work was critical to the creation of Dolly the Sheep in 1996, has died at age 79. The University of Edinburgh in Scotland said Wilmut died Sunday after a ...