The dome shaped colonies representing diapause-like mouse embryonic stem cells. (Credit: Tarakhovsky lab)
Seals give birth only when conditions are right. After mating, a female seal can delay implantation of the embryo in the uterine…

The dome shaped colonies representing diapause-like mouse embryonic stem cells. (Credit: Tarakhovsky lab)
Seals give birth only when conditions are right. After mating, a female seal can delay implantation of the embryo in the uterine…