In a First for Mammals, Mice Are Created Without Fathers (washingtonpost.com)
Lacking any paternal genes, all the mice born this way were females. But they are not clones, because each is a genetically unique animal developed from its own egg.
The feat does not suggest that men will soon become irrelevant for human reproduction. The extreme genetic manipulations used by the team are for now, at least, technically and ethically infeasible in humans.
The experiments produced far more dead and defective baby mice than normal ones.
