Researchers have captured the very first real-time, three-dimensional images and videos of a human embryo implanting into ...

Analyzing embryo movements in uteruslike environments could offer clues to improving the success rate of in vitro ...

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 ...

The majority of fertilized eggs die and are resorbed into the body. ZEISS Microscopy/Flickr, CC BY-SAMany state legislatures are seriously considering human embryos at the earliest stages of ...

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 ...

Many state legislatures are seriously considering human embryos at the earliest stages of development for legal personhood. Total abortion bans that consider humans to have full rights from the ...