"These cells co-develop together, just like they would in an actual embryo, and establish that history of being neighbors," ...

Human biology is not black and white. Although newborns are typically categorized as male or female at birth based on visible ...

North Dakota and Tennessee have passed similar laws in recent years with support from the anti-abortion group that makes the “Baby Olivia” video.

The success of in vitro fertilization depends on many factors, one of which is sperm viability. A recent study from the University of Illinois Urbana-Champaign documents a new way to select viable ...

Fortunately, the human female has other ideas. For her, it's quality, not quantity. Her ovaries usually produce just one egg every month. The process of reproduction is so complex, it's a wonder ...

In six to 10 weeks after fertilization, PGCs differentiate ... first step in research to replicate the developmental process of human germ cells in vitro,” Saitou said. “We expect that this ...