People can pay $50,000 to clone their dog, but despite sharing an identical genetic makeup, they won't act exactly the same.

Cloning promises genetic copies, but a growing body of research across dogs, mice, cattle, and primates shows that clones ...

There is a limit on how many times a mammal can be cloned before suffering "mutational meltdown," Japanese scientists have ...

And the 58th generation of mice did not survive, establishing for the first time that mammals cannot be cloned an infinite number of times. This method of cloning clones had raised the hope of being ...

A 20-year study has shown that, like photocopying photocopies, cloning doesn't produce perfect copies – with big implications ...

Scientists have cloned an endangered US animal for the first time, creating a black-footed ferret named Elizabeth Ann from the frozen cells of an ancestor in a landmark achievement that boosts ...

What if the first-ever cloned jaguar were born within the next few years? Sounds like something out of a sci-fi movie? Not to the scientists at Reprocon research group, based at the Federal University ...

(Peter Finch/Stone/Getty Images) Scientists have pushed the limits of mammal cloning until the whole house of cards has come ...