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

CRISPR is a powerful DNA-editing tool that has underpinned huge advancements in human health care in the last decade. It is a precision tool, but is not perfect, and misplaced DNA edits can compromise ...

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

Repeated cloning from a single mouse failed after 58 generations. Researchers say harmful DNA changes are to blame.

Companies are using A.I. as a reason for layoffs, but the truth may be more complex. By Kevin RooseCasey NewtonRachel CohnWhitney JonesVjeran PavicKatie McMurranDan PowellRowan Niemisto and Diane Wong ...