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 ...

Cells in culture typically form continuous sheets, like skin. But in 2017, bioengineer Jianping Fu realized that if he cultured human stem cells in a 3D scaffold, they would spontaneously organize ...

When Donald Trump signed an executive order aimed at lowering costs for and reducing barriers to in vitro fertilization last month, that renewed the public debate over whether IVF as currently ...

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 ...

SALT LAKE CITY — A Utah lawmaker has introduced a bill that would require Utah schools to show students videos of fertilization and development of a fetus inside the womb. HB315, titled Human Growth ...