Can We Turn Stem Cells Into Eggs?  

Northeastern University biologist Jonathan Tilly is certain he’s found egg-making stem cells in adult mice. If he’s right, it would refute decades-old work that showed female mammals finish making all their eggs before or shortly after birth. This might make it possible to grow new eggs inside the ovaries of older… »11/09/15 3:15pm11/09/15 3:15pm