April 9 -- Cloning experts say that failed attempts to clone monkeys casts serious doubt on reported claims made by an Italian doctor that he helped impregnate a woman with her own clone. "Come on, ...

Fifty-nine days ago, a monkey in Shanghai gave birth to a clone. The infant was the first primate to be cloned using tissue cells, the technique that produced Dolly the sheep. A second monkey, ...

A newly discovered quirk of primate cell biology suggests that monkeys – and humans – are impossible to clone from adult cells using current techniques. The finding directly contradicts claims by ...

NEW YORK -- Scientists say they've reached the long-sought goal of cloning monkey embryos and extracting stem cells from them, a potentially major step toward doing the same thing in people. The ...

For the first time, scientists say they created cloned primates using the same complicated cloning technique that made Dolly the sheep in 1996. Shanghai scientists created two genetically identical ...

Gleaning stem cells from cloned monkey embryos, as a team of Oregon researchers has done, is an impressive step. But it probably won't lead to medical treatments anytime soon. One hurdle is ethical ...