The ambition for embryo models is to provide an ethical way of understanding the earliest moments of our lives. The first weeks after a sperm fertilises an egg is a period of dramatic change ...

This whitish bodily fluid comes out of the penis when a person ejaculates. Its purpose is to help sperm move outside of the ...

The goal is for the sperm and egg to meet and produce an embryo naturally. IVF involves combining eggs and sperm outside the body. Once an embryo or embryos form, a doctor places them into the uterus.

“Others work by thinning the lining of your uterus, so if the egg and sperm connect, the embryo can’t stick into the lining,” Yen says. If it can’t stick to the lining, also known as ...

As far as the success rate from egg freezing goes, it may vary significantly from person to person, based on the ...

Researchers said the egg was probably preserved by a sudden mudslide that buried it, protecting it from scavengers Scientists have announced the discovery of a perfectly preserved dinosaur embryo ...

FOR the first time, scientists have been able to capture the process of ovulation on video in astounding detail. A breathtaking new clip shows a pulsing egg cell exploding out of its ...

Implantation is the initial step in pregnancy, where the embryo attaches to and enters the endometrium, the inner tissue ...

The injection of fluorescent dextran into the embryo’s bloodstream highlights how the heart acts as a central pump, ...

A new "atlas" of early embryonic development in mammals suggests that the process is highly chaotic — but there is some method to the madness.

Undergrads and recent grads—young, healthy, and debt burdened—are offered five figures to donate their eggs to other women undergoing IVF. Cofertility has a more grown-up model.

Discover the crucial role of zinc sparks in mammalian fertilization, zona pellucida hardening, and embryo development.