WASHINGTON -- Cloning humans, or any other primates, may be impossible with today's techniques because of a fundamental molecular obstacle, say scientists trying to understand why attempts to clone ...

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 debate about Dolly / A.J. Klotzko -- Viable offspring derived from fetal and adult mammalian cells / I. Wilmut, ... [et. al] -- The birth of cloning / J.B. Gurdon -- Pandas and cloning / C.

AUSTIN -- A debate over when life begins for a clone is brewing in the background of a bill passed Thursday by the Texas Senate to ban the cloning of human beings. Scientists have said the cloning ...