18:00 12 April 2009 by Linda Geddes
The dogma that women are born with a finite number of eggs may soon be overturned. Stem cells have been discovered in the ovaries of adult mice that seem to give rise to new eggs and healthy offspring.
If these findings are confirmed, it could revolutionise female reproduction – opening the door for women to put off child-rearing almost indefinitely, and providing a new source of eggs for women who have been rendered infertile.
