When couples experience infertility, medical science presents possible solutions for a potentially successful conception of a baby. Infertility issues can be addressed with Human Chorionic ...

Human bodies have to be built from a single egg cell that's fertilized by a sperm cell. Many rounds of cell division occur as the body is developing, and it seems that there are plenty of chances for ...

Scientists based at The Rockefeller University have created an experimental system that models the implantation of a human embryo. The new system, an adaptation of one used to recapitulate the ...

Life’s most important rendezvous occurs between a sperm and an egg, and scientists have long debated precisely how this get-together occurs. In particular, with the precise knowledge of a human ovum’s ...

When sperm meets egg, the start of life is not quiet. Under a special microscope, researchers have watched a tiny light show at fertilization. They see a microscopic flash at fertilization, a burst of ...

A stunning explosion of zinc fireworks occurs when a human egg is activated by a sperm enzyme, and the size of these 'sparks' is a direct measure of the quality of the egg and its ability to develop ...