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 ...

In a proof-of-concept experiment, scientists demonstrated that you can create and fertilize human eggs in the lab using sperm ...

Researchers transplant the nucleus of a skin cell into an egg, or oocyte, stripped of its own nucleus.

INDIANAPOLIS — Southern Baptists on Wednesday voted to oppose the use of in vitro fertilization while also affirming a belief that embryos kept in freezers are "human beings." Despite some internal ...