In a first, mouse eggs grown from skin cells

Lab technique re-creating ovary conditions in a dish needs refinement

cells and mice

EGG-CITING TIP  Skin cells from the tip of a mouse’s tail were reprogrammed into eggs (left) made entirely in a lab dish. Some of those eggs produced healthy mice (two shown, right).

K. Hayashi/Kyushu University

For the first time, researchers have grown eggs entirely in a lab dish.