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), ...

Preimplantation genetic testing for aneuploidies does not improve live birth rates in couples undergoing intracytoplasmic ...

Early skate embryo with endoderm cells labeled with fluorescent dye. The dye persists in the cells each time they divide, allowing scientists to trace their differentiation into specific cell types, ...

Scientists have captured a video showing the implantation of a human embryo for the first time, using a laboratory model of a uterus. When you purchase through links on our site, we may earn an ...

This figure shows a large quantity of human cells (labeled green) in a 17-day old mouse embryo (labeled blue). Most of the human cells are red blood cells, which are accumulated in the mouse fetal ...

Frozen embryos are filling storage banks around the world. It's a struggle to know what to do with them. Lisa Holligan already had two children when she decided to try for another baby. Her first two ...

Ventral (top) and ventro-lateral (bottom) views of Drosophila embryos triple-labeled to visualize expression patterns. The top image (early blastoderm) shows snail (blue), single minded (red), and ...

Producing human cells in vivo is critical because cells made in a petri dish often do not behave the same way that cells do in the body. The research was published on May 13 in Science Advances. “This ...