An embryo consists of cells. These cells divide to make new cells, allowing the embryo to grow. The cells experience variability in how and when they divide and in how they interact with each other.

Why do two-thirds of in vitro fertilization (IVF) embryos go into developmental arrest? A new study shows that many embryos stored for IVF undergo characteristic genetic and metabolic changes that ...

The journey started with an enigma in the zebrafish embryo: some endothelial cells, actively involved in the initial stages ...

The two cells that make up a one-day-old human embryo might look identical at first glance. But a study 1 published today shows that most of the human body forms from only one of those cells — a ...

As you age, your fertility slowly declines. By freezing eggs or embryos when you’re young (usually under the age of 40), you can preserve your eggs’ health and, through in vitro fertilization (IVF), ...

Image of the human-monkey embryo; human cells are labelled in red Credit - Weizhi Ji, Kunming University of Science and Technology In a ground-breaking experiment, researchers have successfully ...

At the end of the 4-cell stage, embryos divide to the 8-cell stage, forming many different shapes and high variability between embryos. Then, cells increase their surface tension which brings cells ...

Why do two-thirds of in vitro fertilization (IVF) embryos go into developmental arrest? A new study publishing June 30 th in the open-access journal PLOS Biology by Andrew Hutchins of Southern ...