Cloning promises genetic copies, but a growing body of research across dogs, mice, cattle, and primates shows that clones begin diverging from their donors almost immediately. Thousands of unique ...

Human cloning is finally here, and it is going to spark a political conflagration. First, some background. The cloning era began when Dolly the sheep was manufactured in 1996. Dolly was cloned via ...

Human reproductive cloning is currently the subject of much debate around the world, involving a variety of ethical, religious, societal, scientific, and medical issues. This report from the National ...

Researchers in South Korea on Thursday announced they succeeded in extracting stem cells from a cloned human embryo. Following a background report on the science behind the research, Margaret Warner ...