Two groups at Harvard University have announced that they have received approval to start human-cloning research designed to create lines of embryonic stem cells to study and treat diseases. “We are ...

Only a handful of laboratories around the world are pursuing human-cloning experiments. Researchers at Harvard are now trying to get approval from university and hospital review boards to start their ...

Scientists in Massachusetts said yesterday they had succeeded in creating the world's first cloned human embryos, a controversial advance intended to speed the development of new medical therapies but ...

The world has now learned of a surprising scientific advance: so-called “synthetic embryos.” Their arrival promises to reveal to medicine previously hidden glimpses into problems of early pregnancy.

Can one be an advocate for embryonic stem cell research while opposing human cloning experimentation? That's the question facing about 30 U.S. senators who have not yet taken a position on human ...

Back when it was no more than a cheesy science-fiction plot device, human cloning seemed like something that would eventually be revealed to a horrified world full-blown and fully grown–a monstrous ...

The cloning era began when Dolly the sheep was manufactured in 1996. Dolly was cloned via somatic cell nuclear transfer (SCNT). This is accomplished by removing the nucleus from a skin or other cell ...

Researchers in China have successfully cloned the first rhesus monkey, a species widely used in medical research because of its physiological similarity to humans. The monkey, named Retro, is now more ...