The first steps of human development—those that occur within the first few weeks of pregnancy—remain mysterious in many ways. Within a week of fertilization, human embryos form a blastocyst, which ...

A gene that turns on very early in embryonic development could be key to the formation of the placenta, which provides the developing fetus with what it needs to thrive during gestation. The placenta ...

How does a baby develop inside the womb? Fox News looks at the various stages of development from conception to birth. Pregnancy tends to follow a well-understood and predictable course. But according ...

The majority of fertilized eggs die and are resorbed into the body. ZEISS Microscopy/Flickr, CC BY-SA As an evolutionary biologist whose career has focused on how embryos develop in a wide variety of ...

By engineering a system replicating the womb lining with high biological accuracy, researchers at the Babraham Institute and ...