A mouse cloning experiment that ran for two decades and spanned 58 generations of serial recloning has reached a dead end, with the final generation failing to produce viable offspring. The collapse, ...

A Japanese research team pushed mouse cloning to its breaking point, producing 1,206 clones from a single donor line before the process collapsed at the 58th generation. The experiment, one of the ...

Once upon a time, long before smartphones or even laptops were ubiquitous, the computer mouse was new, and it was thrilling. The 1984 Macintosh wasn’t the first machine to come with one, but it was ...