FILE - In this Aug. 14, 2013, file photo, an in vitro fertilization embryologist works on a petri dish at a fertility clinic in London. Tens of thousands of people undergo in vitro fertilization every ...

In the beginning, no one really understood how babies were made. Thinkers puzzled for millennia about how life arose from one generation to the next. But not until the 17th century did scientists ...

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 ...