A chemist who said last week her company would soon produce the first human clone _ an infant girl genetically identical to her 30-year-old mother _ prepared an announcement on the effort even as ...

On December 27, 2002, the world was confronted with a claim that seemed ripped from the pages of science fiction. Clonaid, a company associated with the controversial Raelian movement, announced the ...

Scientists in South Korea are reporting Thursday that they have created the world's first mature, cloned human embryos - an advance that could speed the development of new therapies but also brings ...

After operating in secrecy for years, a startup company called R3 Bio, in Richmond, California, suddenly shared details about its work last week—saying it had raised money to create nonsentient monkey ...

The Bush administration began investigating whether a sect claiming to have produced the world's first human clone illegally performed any of the work here, while it also pushed Congress to ban ...