(CNN) -- A human embryo, containing about a couple hundred cells, is smaller than the period at the end of a sentence. Scientists need strong microscopes to see these precursors to life, and to take ...

Is human cloning science fiction or a near reality? In this video, we explore the current state of cloning technology, from the successes in animals to the challenges of applying it to humans.

Cloning is a biotechnological process that involves creating genetically identical copies of an organism or cell. In essence, a clone is an exact genetic replica of the original organism or cell, ...

NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of ...

The Alabama House Judiciary Committee on Wednesday approved a bill to outlaw human cloning. The bill, by Rep. Phillip Rigsby, R-Huntsville, would make it a Class C felony to clone, attempt to clone, ...