A common science fiction trope is infinite cloning. In such a scenario, we could perfectly copy our best livestock, our beloved pets, or even ourselves, forever. But apparently biology doesn’t work ...

SAN FRANCISCO -- Tundra died three years ago, but Susann Rivera never gave up hope that one day she would play with her furry friend again. Her heart soared yesterday after she learned that Texas A&M ...

Revealing the limitations of cloning, researchers who repeatedly cloned mice for two decades have discovered that such serial duplication triggers grave genetic mutations that accumulate over the ...