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 ...

For the first time, scientists have used human cells to make structures that mimic the earliest stages of development, which they say will pave the way for more research without running afoul of ...

In a zero-gravity environment, sperm's ability to orient and navigate towards an egg was significantly reduced. Provided by Getty Images Bank Another hurdle has emerged that must be overcome for ...

Who hasn't seen it before: the view through the microscope in which a sperm penetrates an egg cell and fertilizes it. This fundamental step in procreation happens dynamically and seemingly without ...

Researchers have captured the very first real-time, three-dimensional images and videos of a human embryo implanting into synthetic uterine tissue—revealing a key stage in reproduction. The resulting ...

Moira Gleason is a Daily Signal journalism intern. When Donald Trump signed an executive order aimed at lowering costs for and reducing barriers to in vitro fertilization last month, that renewed the ...

Space is big, empty, and apparently very confusing if you’re a sperm cell. According to a new study from the University of ...