Mammals cannot be cloned infinitely, mice study discovers

The 58th generation of mice did not survive, establishing for the first time that mammals cannot be cloned an infinite number of times, the scientists said in a study published on Tuesday. It had been hoped that this method, which involves making clones of other clones, could have a range of uses in the future, including saving endangered species or mass-producing animals for their meat. "We had believed that we could create an infinite number of clones. That is why these results are so disappointing,"...